KR20230135193A - Werable air purifier - Google Patents

Abstract

The present invention relates to a wearable air purifying device. The wearable air purifying device according to the present invention is a wearable air purifying device that is placed within clothing or is detachably mounted on the body or clothing, and includes an intake port through which air is sucked, and an intake port through which the sucked air is sucked in. A housing having an air curtain discharge port that sprays air in front of the face to form an air curtain and a purified air discharge port that discharges the purified air from inside the air curtain toward the respiratory tract, and is disposed in the housing to purify the inhaled air and discharge the purified air discharge port. It is characterized in that it includes an air purification unit that supplies to.

Description

Wearable air purification device {WERABLE AIR PURIFIER}

The present invention relates to a wearable air purification device, and more specifically, to a wearable air purification device that discharges purified air toward the user's respiratory tract.

The quality of human life is continuously declining due to air pollution such as fine dust, harmful gases, bacteria, and viruses. To protect humans from such air pollution, air purifiers are placed indoors, but recently, wearable air purification devices that can be worn and detached from the human body have been developed. This is because wearable air purification devices can protect the wearer from polluted air regardless of location.

Various types of wearable air purification devices such as mask type and nose ring type are known, but these are unnatural because they cover the wearer's face and may cause problems such as skin irritation because they come in direct contact with the skin.

In addition, conventional wearable air purification devices have been developed as devices without a purification function, such as purifying the air using a filter method or supplying negative ion wind. In particular, in the case of the filter method, air purification performance and pressure loss are proportional to each other, making it impossible to supply a large volume of fresh air to the user, so there is a problem in that the air supply space must be minimized while covering the user's face.

In the case of the electric dust collection method, pressure loss is small and a large amount of purified air can be supplied to the user. However, because wearable air purification devices must be manufactured in a small size, there is inevitably a limit to the amount of purified air that can be discharged.

In wearable air purification devices that discharge purified air toward the respiratory tract, a method of discharging a larger amount of air than required for breathing has been used to block the inflow of harmful air. However, in order to generate a large amount of purified air using the electrostatic dust collection method, there is a problem that a lot of energy is consumed and the device must be large.

Additionally, in the case of the coronavirus, which caused the COVID-19 pandemic, it can survive on the dust collection plate for a long time even if dust is collected, so a method is needed to sterilize not only bacteria but also microorganisms such as viruses.

Furthermore, in the case of the neck band type, the head size and neck circumference are different for each wearer, so convenience of wearing is required.

Republic of Korea Patent Publication No. 10-2018-0017351

Therefore, the purpose of the present invention is to solve this conventional problem, and by forming an air curtain on the face, the amount of purified air discharged toward the wearer's respiratory tract can be reduced, which is energy efficient and can reduce the size of the device. The goal is to provide wearable air purification devices.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The above object is, according to the present invention, in a wearable air purification device that is placed in clothing or detachably mounted on the body or clothing, an intake port through which air is sucked, and an air curtain that sprays the sucked air in front of the face to form an air curtain. A housing in which a purified air discharge port is formed to discharge purified air from the inside of the discharge port and the air curtain toward the respiratory tract; And it can be achieved by a wearable air purifying device including an air purifying unit disposed in the housing to purify the sucked air and supply it to the purified air outlet.

Here, the housing may be formed as a neck band type that surrounds the wearer's neck.

Here, the intake port may be formed at the rear of the neck, the air curtain outlet may be formed on the outside of the front upper surface, and the purified air outlet may be formed on the inside of the front upper surface.

Here, inside the housing, there is a first air flow path that flows the air introduced from the intake port radially outward and communicates with the air curtain discharge port, and a second air flow path that flows radially inward and communicates with the purified air discharge port. A separation partition may be formed to separate the air purification unit and the air purification unit may be formed within the second air flow path.

Here, an air inlet may be formed in the separation partition wall so that air introduced from the intake port flows into the second air flow path.

Here, it may further include a first fan disposed in front of the intake port and sucking air from the intake port.

Here, the air purification unit includes a charging unit that generates ions to charge particles in the air sucked in from the intake port; and a dust collector that collects dust by moving charged particles with the force of an electric field, wherein the charged portion is disposed in front of the air inlet, and the dust collector is disposed on both left and right sides of the second air flow path centered on the air inlet. It can be.

Here, the housing has a first air flow path through which air flows to surround one side of the neck between the inlet and the air curtain outlet formed on one rear side, and the first air flow path between the inlet and the purified air outlet formed on the other rear side. A first fan including a second air flow path through which air flows to surround the other side of the neck in a direction opposite to the flow path, and disposed within the first air flow path to suck air from an intake port on one side; and a second fan disposed in the second air flow path and sucking air from an intake port on the other side, wherein the air purifying unit may be formed in the second air flow path.

Here, inside the housing, there is a separation partition wall that blocks the air introduced from the first flow path from communicating with the purified air outlet and blocks the purified air introduced from the second flow path from communicating with the air curtain outlet. can be formed.

Here, the air purification unit is formed in an air flow path through which air flows between the inlet and the purified air outlet, and includes a charged part that generates ions to charge particles in the air sucked in from the inlet. And a dust collector that collects dust by moving charged particles by the force of the electric field, including a first dust collection plate to which a high voltage is applied and a second dust collection plate that is spaced apart from the first dust collection plate and forms an electric field by a potential difference, The first dust collection plate or the second dust collection plate may be formed of a carbon fiber plate made by weaving carbon fiber into a plate shape.

Here, a direct current supply unit that supplies direct current power between the first dust collection plate and the second dust collection plate; and an alternating current supply unit that supplies alternating current to the first dust collection plate or the second dust collection plate, collects charged particles by supplied direct current power, and collects charged particles by supplying alternating current power or direct current power to the first dust collecting plate or the second dust collecting plate. Sterilization can be performed by heating the dust collection plate or the second dust collection plate.

Here, the charged portion is formed of a first charged plate to which a high voltage is applied and a second charged plate spaced apart from the first charged plate and grounded, one end of the first charged plate is fixed to the first charged plate, and When a high voltage is applied to the first charged plate, a plurality of carbon fiber strands that generate ions may be formed with the other end facing the second plate due to electrostatic force.

Here, the first charging plate and the first dust collecting plate may be formed integrally and a high voltage may be applied, and the second charging plate and the second dust collecting plate may be formed integrally and grounded.

Here, the gas adsorption plate coated with the gas adsorption layer may further include a gas adsorption unit that is spaced apart and adsorbs gas contained in air flowing between the gas adsorption plates.

Here, the charged portion is formed of a first charged plate to which a high voltage is applied and a second charged plate spaced apart from the first charged plate and grounded, one end of the first charged plate is fixed to the first charged plate, and When a high voltage is applied to the first charged plate, a plurality of carbon fiber strands that generate ions are formed with the other end facing the second plate due to electrostatic force, and the first charged plate is formed on a conductive film made of a single flexible material. A first plate on which the carbon fiber strands of the plate, the carbon fiber plate of the first dust collection plate, and the gas adsorption layer of the gas adsorption plate are formed; and a second plate in which an insulating layer of the first charge plate, a carbon fiber plate of the second dust collection plate, and a gas adsorption layer of the gas adsorption plate are formed on a conductive film made of a single flexible material, wherein the first plate is formed. and the second plate may be spaced apart.

Here, the housing can be separated and combined left and right or front and back.

Here, the housing can be separated and coupled by magnetic force.

According to the wearable air purification device of the present invention as described above, it can be placed inside clothing or worn on a neck band, and can directly supply air purified through battery dust collection, sterilization, virus sterilization, and gas adsorption toward the user's respiratory tract. There is an advantage in that it can be done.

In addition, the air curtain can block the inflow of external air into the respiratory tract, so purified air at the level of breathing volume can be discharged, thereby increasing energy efficiency.

In addition, there is an advantage that the size of the air purification unit can be reduced, thereby reducing the size of the entire device.

In addition, since the dust collection part is made of a carbon fiber plate, sterilization can be performed by heating the dust collection plate even with a low direct current voltage, so there is also an advantage that sterilization and virus sterilization can be performed even when worn.

Additionally, it has the advantage of being able to be worn naturally without requiring the user's respiratory system.

In addition, there is an advantage that the charging part can be manufactured in a small size using carbon fiber strands.

In addition, there is an advantage that the charged part and the dust collecting part can be formed of a flexible material such as conductive fiber or conductive plastic, so that the charged part and the dust collecting part can be placed within a curved air flow path.

In addition, it has the advantage of being able to adsorb and remove not only fine dust but also harmful gases.

In addition, it has the advantage of increasing dust collection efficiency without generating any ozone harmful to the human body.

In addition, there is an advantage that it can be manufactured compactly by forming the charging part, dust collection part, and gas adsorption part integrally on a conductive film made of flexible material.

In addition, the wearable air purification device is manufactured to be detachable from left to right or front to back, which has the advantage of being highly convenient to wear regardless of the wearer's physical characteristics.

Figure 1 is a diagram showing a wearing state of a neck band type wearable air purifying device according to an embodiment of the present invention.
Figure 2 is a diagram showing a wearing state of a hood hat type wearable air purifying device according to another embodiment of the present invention.
Figure 3 is a cross-sectional view of a neck band type wearable air purification device according to an embodiment of the present invention.
Figure 4 is a modification of Figure 3.
Figure 5 is a cross-sectional view of a wearable air purifying device of the front and rear separate neck band type as a modified example of Figure 4.
Figure 6 is a cross-sectional view of a neck band type wearable air purification device according to another embodiment of the present invention.
FIG. 7 is a cross-sectional view of a left and right separate neck band type wearable air purifying device as a modified example of FIG. 6.
FIG. 8 is a cross-sectional view of a wearable air purifying device of a neck band type with front and rear detachable as another modification of FIG. 6.
Figure 9 is a diagram showing the configuration of an air purification unit according to an embodiment of the present invention.
FIG. 10 is a diagram illustrating the operation when a high voltage is applied to the charging part and the dust collecting part in FIG. 9.
Figure 11 is a diagram showing the configuration of an air purification unit according to another embodiment of the present invention.
Figure 12 shows a first plate formed from a single flexible film.
Figure 13 shows a second plate formed on a single flexible film.
Figure 14 is a diagram showing the results of testing the sterilization effect by heat generation of the dust collection plate.
Figure 15 is a diagram showing the results of an experiment on the virus killing effect due to heat generation of the dust collection plate.
Figure 16 is a photograph showing various types of dust collection plates for heat generation experiments.
Figure 17 shows the results of simulating the air curtain formed when air is discharged through the air curtain outlet and the droplet blocking effect depending on the speed of the air curtain.
Figure 18 shows the results of testing the effect of the air curtain on blocking particle generation within the air curtain.

Specific details of the embodiments are included in the detailed description and drawings.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to drawings for explaining a wearable air purifying device according to embodiments of the present invention.

1 is a diagram illustrating a wearing state of a neck band-type wearable air purifying device according to an embodiment of the present invention, and FIG. 2 is a drawing illustrating a wearing state of a hooded hat-type wearable air purifying device according to another embodiment of the present invention. This is a drawing showing the state.

A wearable air purifying device according to an embodiment of the present invention may be configured to include a housing 110 and an air purifying unit 130.

The housing 110 is made of a lightweight material so that it can be mounted on clothing or detachably mounted on the body or clothing, and as described later, it has an intake port 111 through which air is sucked, and an air curtain by spraying the sucked air in front of the face. An air curtain outlet 112 may be formed, and a purified air outlet 113 may be formed to discharge air that is sucked in and purified in the air purification unit 130 toward the respiratory tract. In addition, within the housing 110, there is a first air flow path 114a (see FIG. 3), which is a path through which air flows between the intake port 111 and the air curtain discharge port 112, and the intake port 111 and the purified air discharge port ( 113), a second air flow path 114b, which is a path through which air flows, may be disposed.

The air purification unit 130 is formed in the second air flow passage 114b to purify incoming air, and the purified air can be discharged toward the wearer's respiratory tract through the purified air outlet 113.

The housing 110 of the neck band type wearable air purifying device shown in FIG. 1 may be formed in a ring shape so that it can be worn around the user's neck. When mounted on the user's neck, an intake port 111 through which air flows may be formed at the back of the neck. In addition, when mounted on the user's neck, an air curtain outlet 112 forming an air curtain in front of the face is formed on the outside of the front upper surface in the form of long left and right slits, and on the inside of the front upper surface is a purified air outlet that discharges purified air. A plurality of discharge holes 113 may be formed on the left and right. The air sucked in from the intake port 111 flows along the first air flow path 114a, which is a separate flow path within the housing 110, and is discharged through the air curtain discharge port 112 to form an air curtain, and the air curtain is discharged through the air curtain discharge port 112. ) is purified through the air purification unit 130 while flowing along the second air flow path 114b, which is another flow path separated within the housing 110, and the purified air is purified inside the air curtain. The purified air may be discharged toward the wearer's respiratory tract through the purified air outlet 113. Here, the outside may mean the side farthest from the wearer's body, and the inside may mean the side closer to the wearer's body.

An air curtain outlet 112 and a purified air outlet 113 are formed under the chin, so that purified air can be discharged from under the chin upward toward the front of the user's face. At this time, the air curtain discharged from the air curtain outlet 112 can block harmful substances from entering the respiratory tract from the outside. At this time, since a space of a predetermined area separated from the outside is formed between the air curtain and the face, the wearer can easily breathe with the purified air even if the purified air is supplied from the purified air outlet 113 or a slightly larger amount than the respiratory volume. You can do it. However, in the case where there is no air curtain, harmful air in the atmosphere can easily be transmitted to the respiratory system, so in order to block this, several to dozens of times the amount of purified air must be supplied to the respiratory system. Therefore, the wearable air purification device according to the present invention can reduce the amount of purified air supplied to the wearer's respiratory tract by forming an air curtain in front of the face.

Wearable air purification devices are inevitably limited in size because they are worn on the body. As will be described later, electricity must be supplied to the fan 120 and the air purification unit 130 to create purified air, but the amount of power that can be used in wearable air purifying devices that use portable power is limited. Due to limitations in size and power, it is difficult to continuously supply large amounts of purified air from wearable air purification devices. Accordingly, in the present invention, the amount of purified air supplied to the respiratory tract can be reduced by forming an air curtain on the face and supplying purified air inside the air curtain toward the wearer's respiratory tract, and thus the size of the device can be miniaturized. Energy efficient.

Figure 2 shows another type of wearable air purifying device.

The housing 110 of the illustrated hood hat-type air purifying device is shaped like a hat to cover the user's head but leaves the front of the face open. At this time, the air flow path 114 may be curved along the edge of the front of the user's head when the housing 110 is mounted on the user's head. In this embodiment, the front edge of the housing 110, which forms the air flow path 114, is preferably made of a relatively strong material, and the rear part that covers the user's head is preferably made of a material that is flexible and comfortable to wear. . For example, the back portion may be formed of cloth.

A fixing part (not shown) may be formed on the lower end of the housing 110 to enable attachment and detachment from clothing. The fixing part may be formed of a zipper or button.

Intake ports 111 for sucking air may be formed on both sides of the lower front part. The air sucked in from the intake port 111 on one side moves along the first air flow path 114a on one side and is discharged through the air curtain discharge port 112 to form an air curtain in front of the face. The air sucked from the inlet 111 on the other side moves along the second air flow path 114b on the other side, and the air purified in the air purification unit 130 enters the respiratory tract inside the air curtain through the purified air discharge port 113. It can be discharged towards.

An air flow path 114 curved along the front edge of the housing 110 may be formed between the intake port 111, the air curtain outlet 112, and the purified air outlet 113.

An air purification unit 130, which will be described later, may be disposed on the second air flow path 114b on the other curved side.

When the wearable air purification device according to this embodiment is mounted on the user's head, the air curtain outlet 112 and the purified air outlet 113 are formed on the uppermost lower surface of the air flow path 114 to purify the user from top to bottom of the user's forehead. Air can be discharged toward the front of the face.

The following description will focus on the neck band type wearable air purification device.

Figure 3 is a cross-sectional view of a wearable air purification device of the neck band type according to an embodiment of the present invention, Figure 4 is a modification of Figure 3, and Figure 5 is a modification of Figure 4 of a wearable air purification device of the neck band type with front and rear separate sides. This is a cross-sectional view of the purification device. Figure 6 is a cross-sectional view of a neck band type wearable air purifying device according to another embodiment of the present invention, Figure 7 is a cross-sectional view of a left and right separate neck band type wearable air purifying device as a modification of Figure 6, and Figure 8 is a Another modification of Figure 6 is a cross-sectional view of a wearable air purification device of the front and rear detachable neck band type.

When the user wears it on the neck, an intake port 111 may be formed at the rear, meaning behind the body. At this time, inside the housing 110, the air flowing in from the intake port 111 flows radially outward and the first air flow path 114a communicates with the front air curtain discharge port 112 and the air flowing in from the intake port 111. A separation partition wall 115 may be formed to flow air radially inward and separate it into a second air flow path 114b that communicates with the purified air discharge port 113 at the front.

Accordingly, the air sucked in from the intake port 111 branches to the left and right through the first air flow path 114a that branches to the left and right and is discharged through the air curtain discharge port 112 to form an air curtain.

An air inlet 1152 may be formed in the separation partition wall 115 in front of the inlet 111 so that some of the air introduced from the inlet 111 can flow into the second air flow path 114b. Accordingly, the air sucked from the intake port 111 flows in through the air inlet 1152, branches off into the second air flow paths 114b on the left and right, and is discharged through the purified air discharge port 113 to supply purified air to the wearer's respiratory tract. can be supplied.

In this embodiment, the air flowing in from the intake port 111 branches to the left and right along the first air flow path 114a and the second air flow path 114b, respectively, to the air curtain discharge port 112 and the purified air discharge port 113. Since it is discharged through, air can be discharged relatively uniformly regardless of the left and right positions of the air curtain discharge port 112 and the purified air discharge port.

A first fan 120a may be disposed in front of the intake port 111 to suck external air into the housing 110 through the intake port 111. Additionally, a second fan 120b may be disposed in the air inlet 1152 to suck some of the air introduced into the housing 110 through the inlet 111 into the second air flow path 114b.

Different from what is shown, the second fan 120b may be omitted. When external air flows into the housing 110 by the first fan 120a, the amount of air flowing into the second air flow path 114b can be controlled depending on the size of the air inlet 1152. there is.

Since the flow rate of the air forming the air curtain is faster than that of the purified air and a larger volume of air is required, in this embodiment, the first fan 120a sucks in air at a faster rate and a larger flow rate than the second fan 120b. It is desirable to do so.

At this time, the air purification unit 130 is disposed inside the second air flow path 114b to purify the air flowing into the second air flow path 114b and discharges the purified air through the purified air discharge port 113. make it possible

The air purification unit 130 includes a charging unit 1310 that generates ions to charge particles in the air sucked in from the intake port 111, and a dust collection unit 1320 that moves the charged particles with the power of an electric field to collect dust. It can be.

At this time, as shown in FIG. 3, the charged portion 1310 may be disposed in front of the air inlet 1152. Accordingly, air containing charged particles in the central charged portion 1310 may branch and move to the left and right along the second air flow path 114b. Accordingly, the dust collection unit 1320 can be disposed on each of the second air flow paths 114b on both left and right sides around the air inlet 1152 to collect charged particles and purify the air.

Alternatively, as shown in FIG. 4, the air purification unit 130 composed of a charging unit and a dust collection unit may be disposed in the second air flow path 114b branching to the left and right, respectively.

The detailed configuration of the air purification unit 130 will be described later.

Figure 6 shows a neck band type wearable air purifying device according to another embodiment of the present invention. In this embodiment, the inlet 111 is formed on both sides, and the air flowing into the housing 110 through the inlet 111a located on one side is formed to surround one side of the neck (left side of the drawing). It may flow along 114a) and be discharged through the air curtain discharge port 112. In addition, the air flowing into the housing 110 through the intake port 111b located on the other side flows along the second air flow path 114b formed to surround the other side of the neck (right side of the drawing) while flowing through the air purification unit 130. ) and can be purified and discharged through the purified air outlet (113). Accordingly, a separation partition wall 115 may be formed at the center in front of the intake ports 111a and 111b so that the air flowing in from the intake ports 111a and 111b on both sides is separated rather than mixed.

In addition, a separation partition wall 115 may be formed inside the front housing 110 to prevent the air flowing along the first air flow path 114a from mixing with the air flowing along the second air flow path 114b. . Outside of the separation partition 115 as the center, an air curtain discharge port 112 may be formed in the form of a long slit on the left and right through which air that communicates with the first air flow path 114a and forms the air curtain is discharged. Additionally, inside the separation partition wall 115, a plurality of purified air discharge ports 113 may be disposed spaced left and right to communicate with the second air flow passage 114b and discharge purified air.

A fan 120 may be formed within the air flow path 114. More specifically, the first fan 120a is disposed in a position close to the intake port 111a on one side of the first air flow path 114a to suck in air to form an air curtain. Additionally, a second fan 120b is disposed in the second air flow path 114b at a position close to the suction port 111b on the other side to suck in air for discharging purified air.

Since the flow rate of the air forming the air curtain is faster and a larger volume of air is required, in this embodiment, it is better to have the first fan (120a) intake air faster and with a larger flow rate than the second fan (120b). desirable.

An air purification unit 130 may be disposed within the second air flow path 114b. In the present invention, the housing 110 can be separately coupled left and right or front and back.

In one embodiment, as shown in FIG. 7, the housing 110 may be separated and coupled to the left and right. It can be separated into left and right sides centered on the left and right intake ports 111a and 111b. Accordingly, the first fan 120a is disposed within the housing 110a on the separated side (left side of the drawing), and the second fan 120b and the air purification are disposed within the housing 110b on the other separated side (the right side of the drawing). Unit 130 may be disposed. At this time, the air curtain outlet 112 and the purified air outlet 113 may be formed separately in the left and right housings 110a and 110b. When the separated left and right housings 110a and 110b are combined, the first air flow path 114a and the second air flow path 114b, which are separated on the left and right, communicate as shown in FIG. 6. A packing ring (not shown) may be formed at the coupling site to prevent air from entering. In this embodiment, the magnetic material 117 can be placed at the coupling site to separate and couple them by magnetic force. In another embodiment, as shown in FIGS. 5 and 8, the housing 110 may be separately coupled back and forth. Accordingly, the inlet 111, the first fan 120a, the second fan 120b, and the air purification unit 130 can be disposed in the separated rear housing 110c, and the air curtain outlet is in the front housing 110d. (112) and a purified air outlet 113 may be disposed. Likewise, a packing ring can be formed at the coupling site, and a magnetic material 117 can be placed at the coupling site to separate and couple them by magnetic force.

As described above, since the housing 110 of the wearable air purifying device according to the present invention can be separated and combined, it can be easily worn around the neck regardless of the wearer's head size, neck thickness, etc.

Hereinafter, the detailed configuration of the air purification unit 130 will be described.

FIG. 9 is a diagram showing the configuration of an air purifying unit according to an embodiment of the present invention, and FIG. 10 is a diagram showing an operation when a high voltage is applied to the charging unit and the dust collecting unit in FIG. 9.

The air purification unit 130 according to an embodiment of the present invention may be configured to include a charging unit 1310, a dust collection unit 1320, and a gas adsorption unit 1330.

The charging portion 1310 is formed behind the second fan 120b on the second air flow path 114b. That is, the air sucked from the second fan 120b flows into the charged part 1310. The charging part 1310 generates ions to charge fine particles such as fine dust or viruses in the air.

The charging unit 1310 may be composed of a first charging plate 1312 and a second charging plate 1314. The first charge plate 1312 and the second charge plate 1314 are flexible and can be easily bent and may be made of a material that conducts electricity. As described above, the size of the air flow path 114 is small and can be curved, so the first charge plate 1312 and the second charge plate 1314 are flexible so that they can be placed on the air flow path 114. It is preferable that it is made of material. For example, it may be formed of conductive plastic or conductive fiber in the form of a thin film.

The first charge plate 1312 and the second charge plate 1314 are spaced apart. Although not shown, a separate gap maintenance member is provided between the first charge plate 1312 and the second charge plate 1314 to maintain the gap between the first charge plate 1312 and the second charge plate 1314. can be inserted.

A high voltage may be applied to the first charge plate 1312 and the second charge plate 1314 may be grounded. That is, the first charged plate 1312 acts as a high voltage electrode and the second charged plate 1314 acts as a ground electrode.

Additionally, a plurality of carbon fiber strands 1313 are spaced apart from one surface of the first charge plate 1312. At this time, one end of the carbon fiber strand 1313 may be fixed to the first charge plate 1312 and the other end may be lying on the first charge plate 1312 in an unfixed state. As shown in FIG. 10, when a high voltage is applied to the first charge plate 1312, the carbon fiber strand 1313 is fixed by electrostatic force between the first charge plate 1312 and the second charge plate 1314. It happens around one group. At this time, a discharge phenomenon may occur due to a potential difference at the end (the other end) of the carbon fiber strand 1313 through which high voltage flows, thereby generating ions. At this time, the generated ions charge particles in the air.

As such, in the present invention, the charged portion 1310 that generates ions can be easily formed in a narrow space by arranging the carbon fiber strands 1313 on the first charged plate 1312.

An insulating layer 1315 may be coated on the surface of the second charge plate 1314 with an insulating material. The insulating layer 1315 prevents discharge from occurring in the carbon fiber strands 1313 so that the discharge occurs but does not reach a glow discharge state that generates ozone. The amount of ions generated from the carbon fiber strands 1313 by the insulating layer 1315 is somewhat smaller than the amount of ions generated when a glow discharge occurs, but it can sufficiently charge polluting particles in the air within a small space. . In addition, in the present invention, air that has passed through the charged portion 1310 is discharged toward the user's respiratory tract, and ozone is not generated by the insulating layer 1315, thereby preventing inhalation of ozone harmful to the human body.

The insulating layer 135 may be formed of synthetic resin such as polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC), but is not limited thereto.

FIG. 9 shows a pair of first and second charge plates 1312 and 1314, but a plurality of first and second charge plates 1312 and 1314 are provided alternately. By placing them spaced apart, charging efficiency can be increased.

The dust collection unit 1320 is formed behind the charging unit 1310 on the second air flow path 114b. That is, fine particles such as dust and viruses contained in the air sucked from the second fan 120b are charged in the charging unit 1310, and the charged particles may be electrostatically collected in the dust collection unit 1320.

The dust collection unit 1320 may be composed of a first dust collection plate 1322 and a second dust collection plate 1324. Like the charging plates 1312 and 1314, the dust collection plates 1322 and 1324 are preferably made of a material that is flexible and can be easily bent and conducts electricity. For example, it may be formed of conductive plastic or conductive fiber in the form of a thin film.

The first dust collection plate 1322 and the second dust collection plate 1324 are spaced apart. Although not shown, a separate gap is maintained between the first dust collection plate 1322 and the second dust collection plate 1324 in order to maintain the separation distance between the first dust collection plate 1322 and the second dust collection plate 1324. Members may be inserted.

A high voltage may be applied to the first dust collection plate 1322 and the second dust collection plate 1324 may be grounded. Therefore, the charged particles flowing between the first dust collection plate 1322 and the second dust collection plate 1324 are grounded by the force of the electric field caused by the potential difference between the first dust collection plate 1322 and the second dust collection plate 1324. It can be collected on the second dust collection plate 1324. Of course, depending on the polarity of the charge of the charged particles, they may be collected on the first dust collection plate 1322 or on both dust collection plates 1322 and 1324.

In the present invention, the first dust collection plate 1322 or the second dust collection plate 1324 may be formed of a carbon fiber plate made by weaving carbon fiber into a plate shape. When the dust collection plates 1322 and 1324 are formed of carbon fiber plates, not only when an alternating current voltage is applied to the dust collection plates 1322 and 1324, but also when a direct current is applied between the first dust collection plate 1322 and the second dust collection plate 1324. Even when voltage is applied, the dust collection plates 1322 and 1324 generate heat, which can kill viruses and bacteria collected in the dust collection plates 1322 and 1324.

More specifically, an AC connection terminal may be formed on the first dust collection plate 1322 or the second dust collection plate 1324 to supply AC current through the external AC supply unit 1380. Since the current supplied in a general building is alternating current, the alternating current connection terminal of the wearable air purification device is connected to the alternating current supply unit 1380 of the building to apply alternating current to form the first dust collection plate 1322 or the second dust collection plate 1324. can be heated. Therefore, by removing the wearable air purification device and connecting the AC connection terminal to the AC supply unit 1380, the first dust collection plate 1322 or the second dust collection plate 1324 is heated to a temperature sufficient to sterilize viruses, bacteria, etc. Viruses or bacteria collected on the dust collection plate can be sterilized by heating for a period of time.

In addition, when the first dust collection plate 1322 and the second dust collection plate 1324 are formed of a carbon fiber plate, when a direct current voltage is applied through the direct current supply unit 1370 and a potential difference is formed between the two plates 1322 and 1324, Not only can charged particles be collected in the charged part 1310 by the force of the electric field, but also the collected viruses or bacteria can be killed by heating the first dust collection plate 1322 or the second dust collection plate 1324.

Therefore, even while the user is wearing the wearable air purification device according to the present invention, electrostatic dust collection and sterilization can be performed simultaneously through the direct current supply unit 200 without a separate external power source.

Since the wearable air purification device according to the present invention discharges purified air directly toward the user's respiratory tract, if viruses or bacteria multiply on the dust collection plates 1322 and 1324, the viruses or bacteria may be discharged into the respiratory tract. However, in the present invention, even when wearing a wearable air purification device and a direct current voltage is applied without a separate external power source, heat can be generated in the dust collection plates 1322 and 1324, thereby instantly killing viruses or bacteria. The details of the experiment related to this will be described later.

An insulating layer 1325 may be coated with an insulating material on the surface of the carbon fiber plate. Since the carbon fiber plate is heated to a high temperature, the insulating layer 1325 is preferably formed of a material that has heat resistance.

Figure 9 shows that a pair of first dust collection plates 1322 and second dust collection plates 1324 are formed, but a plurality of first dust collection plates 1322 and second dust collection plates 1324 are provided alternately. By placing them spaced apart, dust collection efficiency can be increased.

The gas adsorption unit 1330 adsorbs gas contained in the air. The gas adsorption unit 1330 may be configured by spaced apart the gas adsorption plate 1332 coated with the gas adsorption layer 1334.

When air flows between the vertically spaced gas adsorption plates 1332, the gas contained in the air may be absorbed by the gas adsorption layer 1334. At this time, the narrower the gap between neighboring gas adsorption plates 1332, the easier it is for gas in the air to be absorbed into the gas adsorption layer 1334. The gas adsorption layer 1334 may be formed of activated carbon fiber, but is not necessarily limited thereto.

At this time, a separate gap maintenance member may be inserted between the gas adsorption plates 1332 to maintain the gap between the two spaced apart gas adsorption plates 1332.

In addition, if a plurality of gas adsorption plates 1332 are provided and spaced apart, the separation distance between neighboring gas adsorption plates 1332 is reduced, thereby further increasing gas adsorption efficiency.

In the drawing, the gas adsorption unit 1330 is formed behind the dust collection unit 1320, but it may be located at any position behind the fan 120.

Hereinafter, the air purification unit 130 according to another embodiment of the present invention will be described.

FIG. 11 is a diagram showing the configuration of an air purification unit according to another embodiment of the present invention, FIG. 12 shows a first plate formed on a single flexible film, and FIG. 13 shows a first plate formed on a single flexible film. 2 plates are shown.

The following description will focus on the differences compared to the embodiment described above with reference to FIGS. 9 and 10.

In this embodiment, the first charged plate 1312 of the charging part 1310 and the first dust collecting plate 1322 of the dust collecting part 1320 are integrally formed with the first plate 1362, and the first charging plate 1312 of the charging part 1310 2 The charged plate 1314 and the second dust collecting plate 1324 of the dust collecting part 1320 are integrally formed with the first plate 1364. Additionally, a gas adsorption plate 1332 may also be formed integrally with the first plate 1362 and the first plate 1364.

For reference, in FIG. 11, the left 1/3 area of the first plate 1362 corresponds to the above-described first charged plate 1312, and the middle 1/3 area of the first plate 1362 corresponds to the above-described first dust collector. It corresponds to the plate 1322, and the right 1/3 area of the first plate 1362 corresponds to the gas absorption plate 1332 described above. In addition, the left 1/3 area of the first plate 1364 corresponds to the above-described second charging plate 1314, and the middle 1/3 area of the first plate 1364 corresponds to the above-described second dust collection plate 1324. , and the right 1/3 area of the first plate 1364 corresponds to the gas absorption plate 1332 described above.

At this time, when a high voltage is applied to the first plate 1362, the high voltage can be simultaneously applied to the first charge plate 1312 and the first dust collection plate 1322, which are formed as one piece. Additionally, by grounding the first plate 1364, the second charging plate 1314 and the second dust collection plate 1324, which are formed as one piece, can be grounded simultaneously.

Therefore, the first plate 1362 and the first plate 1364 are spaced apart from each other, and the first charged plate 1312 and the second charged plate 1314, the first dust collecting plate 1322 and the second dust collecting plate ( If 1324) are positioned to face each other, they perform the functions of the charging part 1310 and the dust collecting part 1320 of FIG. 9.

As shown in FIG. 12, the first plate 1362 includes the carbon fiber strands 1313, the carbon fiber plate (first dust collection plate 1322), and gas adsorption on a single flexible conductive film 1361. It can be formed by disposing the layer 1334.

In addition, as shown in FIG. 13, the first plate 1364 includes an insulating layer 1315 to prevent ozone generation on a conductive film 1361 made of a single flexible material, and a carbon fiber plate (second dust collection plate 1324) ), can be formed by disposing the gas adsorption layer 1334.

The conductive film 1361 made of a flexible material may be formed of conductive plastic or conductive fiber in the form of a thin film.

Since the space within the housing 110 where the charging unit 1310, dust collection unit 1320, and gas adsorption unit 1330 of the present invention are placed is very narrow, it is important to make it compact so that it can be installed in a narrow space. Accordingly, in the present invention, the charging part 1310, the dust collection part 1320, and the gas adsorption part 1330 are integrally formed on the conductive film 1361 made of a flexible material, so that it can be manufactured in a small and compact size.

Although not shown, the wearable air purification device according to the present invention may further include a sensor that detects fine dust, harmful gases, viruses, bacteria, etc.

While the user wears the wearable air purification device according to the present invention, the sensor detects the state of pollution in the air in real time. At this time, when air pollution is detected, the fan 120 is operated and a direct current high voltage is applied to the first charged plate 1312 of the charging unit 1310 and the second dust collecting plate 1324 of the dust collecting unit 1320 to provide an air purification device. can operate. At this time, charged particles or viruses in the charged part 1310 may be collected on the dust collecting plates 1322 and 1324 of the dust collecting part 1320. In the present invention, when the dust collecting plates 1332 and 1324 are formed of carbon fiber plates. Even if a relatively low direct current voltage is applied, the dust collection plates 1322 and 1324 can be heated to a predetermined temperature. Therefore, bacteria or viruses collected or generated in the dust collection plates 1322 and 1324 while worn can be killed.

Additionally, indoors, if you take off your clothes and connect the AC connection terminal to the external AC supply unit 1380, AC voltage can be supplied to the dust collection plates 1322 and 1324 to heat and sterilize the dust collection plates 1322 and 1324.

Figure 14 is a diagram showing the results of testing the sterilization effect by heat generation of the dust collection plate, Figure 15 is a diagram showing the results of testing the virus sterilization effect by heat generation of the dust collection plate, and Figure 16 is a diagram showing the results of testing the sterilization effect by heat generation of the dust collection plate. This photo shows various types of dust collection plates.

Figure 14 shows the results of an experiment on antibacterial efficiency when bacteria were activated on a carbon plate-shaped plate and the plate was heated to a temperature of approximately 80°C. When heated for 10 minutes, it can be confirmed that 100% of bacteria cannot be sterilized, but it can be confirmed to be close to 100% sterilized, and when heated for 30 minutes, it can be confirmed that 100% of bacteria are sterilized.

Figure 15 shows the results of an antiviral efficiency test when MS2 virus and H1N1 virus were activated on a carbon plate-shaped plate and the plate was heated at a temperature of approximately 50°C for 10, 20, and 30 minutes. As the heating time increases, the killing effect becomes more excellent, and it can be confirmed that almost 100% of the viruses can be killed.

Accordingly, in the present invention, various types of dust collection plates were manufactured and experiments were performed with the goal of heating the dust collection plate of the dust collection unit 1320 to 80°C.

Figure 16 is a photograph showing various types of dust collection plates used in the experiment. The characteristics of each dust collection plate are as follows.

Carbon plate type Dimensions (cm) characteristic width length Carbon Plate-N 10 15 20 3.5 It is coated with a thin layer of carbon, and there is no plastic film on the surface. carbon fiber 20 4 It is made by weaving thin and long carbon fibers. activated carbon fiber 20 3.5 Made of activated carbon into a fiber material. Carbon plate L16 14.1 7.7 It is a carbon film, divided into layers, and the resistance is lowered with silver. Carbon plate L9 7.9 7.3 It is a carbon film, divided into layers, and the resistance is lowered with silver. Carbon plate XL24-1.9 24.3 7.2 It is a carbon film, coated with carbon in an X shape, and the resistance is lowered with silver. Carbon plate XL42-1.9 42.4 8 It is a carbon film, coated with carbon in an X shape, and the resistance is lowered with silver. Carbon plate XL42-0.4 42.4 7.3 It is a carbon film, coated with carbon in an X shape, and the resistance is lowered with silver.

At this time, when alternating voltage is applied to each dust collection plate, the results of measuring the voltage value to reach 80°C are shown in Table 2 below. When alternating voltage was applied, the carbon plate was heated in general proportion to the amount of voltage applied per unit area, and the amount of voltage required to reach 80°C was within 220V used in general buildings. As an exception, the carbon plate L16 could not be heated to 38.2°C at 210V, and the carbon plate XL42-0.4 generated heat briefly the moment voltage was applied, and the temperature did not rise even after increasing the voltage. When carbon fiber is used as in the present invention, it can be confirmed that 80°C is reached at a very low voltage of 7V.

Carbon plate type Dimensions (cm) characteristic width length Carbon Plate-N 10 15 20 3.5 100 160 220 carbon fiber 20 4 7 activated carbon fiber 20 3.5 145 Carbon plate L16 14.1 7.7 X Carbon plate L9 7.9 7.3 150 Carbon plate XL24-1.9 24.3 7.2 35 Carbon plate XL42-1.9 42.4 8 40 Carbon plate XL42-0.4 42.4 7.3 X

In addition, when applying direct current voltage to each carbon plate, the results of measuring the voltage value required to reach 80°C are shown in Table 3 below. When carbon fiber was used as in the present invention, 80°C was reached at a very low voltage of 9V, and in all other cases, 80°C was not reached within the maximum voltage value of the experiment.

It can be confirmed experimentally that in the wearable air purification device according to the present invention, the dust collection plate can be sterilized by heating to 80°C using a relatively small direct current voltage that can be carried by the user.

Carbon plate type Dimensions (cm) characteristic width length carbon fiber 20 4 9 activated carbon fiber 20 3.5 X Carbon plate L16 14.1 7.7 X Carbon plate L9 7.9 7.3 X Carbon plate XL24-1.9 24.3 7.2 X Carbon plate XL42-1.9 42.4 8 X Carbon plate XL42-0.4 42.4 7.3 X

Figure 17 shows the results of simulating the air curtain formed when discharging air through the air curtain outlet and the droplet blocking effect according to the speed of the air curtain, and Figure 18 shows the blocking effect of particle generation within the air curtain by the air curtain. The results of the experiment are shown.

As shown on the left side of Figure 17, when the thickness of the slit is set to 3 mm and air is discharged into the slit at a speed of 0.4 m/s, which is a speed that may cause discomfort to the user, an air curtain is formed through simulation. You can check it. In addition, as shown on the right side of Figure 17, the air curtain can effectively block droplets flowing in from the outside, and it can be confirmed through simulation that the blocking effect varies depending on the speed of the air curtain.

In Figure 18, it can be experimentally confirmed that particles are generated or blocked inside the air curtain depending on the presence or absence of the air curtain.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented in various forms of embodiments within the scope of the appended claims. It is considered to be within the scope of the claims of the present invention to the extent that anyone skilled in the art can make modifications without departing from the gist of the invention as claimed in the claims.

110: housing
111: intake port
112: Air curtain outlet
113: Purified air outlet
114: air flow path
115: separation bulkhead
1152: air inlet
117: magnetic material
120: fan
130: Air purification unit
1310: lower part
1312: first charged plate
1313: Carbon fiber strand
1314: second charged plate
1315: Insulating layer
1320: Dust collection unit
1322: First dust collection plate
1324: Second dust collection plate
1325: Insulating layer
1330: Gas adsorption unit
1332: Gas adsorption plate
1334: Gas adsorption layer
1361: Conductive film made of flexible material
1362: first plate
1364: second plate
1370: DC supply unit
1380: AC supply department

Claims (17)

In a wearable air purification device placed within clothing or detachably mounted on the body or clothing,
A housing formed with an intake port through which air is sucked, an air curtain discharge port that sprays the sucked air in front of the face to form an air curtain, and a purified air discharge port that discharges purified air from inside the air curtain toward the respiratory tract; and
A wearable air purification device including an air purification unit disposed in the housing to purify the sucked air and supply it to the purified air discharge port. According to claim 1,
The housing is a wearable air purification device that is formed as a neck band type that surrounds the wearer's neck. According to clause 2,
A wearable air purification device wherein the intake port is formed behind the neck, the air curtain outlet is formed on the outside of the front upper surface, and the purified air outlet is formed on the inside of the front upper surface. According to clause 3,
Inside the housing, the air flowing in from the intake port is divided into a first air flow path that flows radially outward and communicates with the air curtain discharge port, and a second air flow path that flows radially inward and communicates with the purified air discharge port. A wearable air purifying device in which a separating partition wall is formed, and the air purifying unit is formed in the second air flow path. According to clause 4,
A wearable air purification device in which an air inlet is formed in the separation partition wall to allow air introduced from the intake port to flow into the second air flow path. According to clause 5,
A wearable air purification device further comprising a first fan disposed in front of the intake port and sucking air from the intake port. According to clause 5,
The air purification unit
A charging unit that generates ions to charge particles in the air sucked in from the intake port; and
It includes a dust collector that collects charged particles by moving them with the force of an electric field,
The charged portion is disposed in front of the air inlet,
The dust collection unit is a wearable air purification device disposed on both left and right sides of the second air flow path centered on the air inlet. According to clause 3,
The housing includes a first air flow path through which air flows to surround one side of the neck between the inlet and the air curtain outlet formed on one rear side, and a first air flow path between the inlet and the purified air outlet formed on the other rear side. It includes a second air flow path through which air flows to surround the other side of the neck in the opposite direction,
a first fan disposed within the first air flow path and sucking air from an intake port on one side; and
It further includes a second fan disposed in the second air flow path to suck air from an intake port on the other side,
The air purification unit is a wearable air purification device formed in the second air flow path. According to clause 8,
A separation partition is formed inside the housing to block the air introduced from the first flow path from communicating with the purified air outlet and to block the purified air introduced from the second flow path from communicating with the air curtain outlet. Wearable air purification device. According to claim 1,
The air purification unit is formed in an air flow path through which air flows between the intake port and the purified air discharge port,
A charging unit that generates ions to charge particles in the air sucked in from the intake port; and
It includes a first dust collection plate to which a high voltage is applied and a second dust collection plate spaced apart from the first dust collection plate to form an electric field by a potential difference, and a dust collector that collects dust by moving charged particles by the force of the electric field,
The first dust collection plate or the second dust collection plate is a wearable air purification device formed of a carbon fiber plate made by weaving carbon fiber into a plate shape. According to claim 10,
a direct current supply unit that supplies direct current power between the first dust collection plate and the second dust collection plate; and
It further includes an alternating current supply unit that supplies alternating current to the first dust collection plate or the second dust collection plate,
A wearable air purification device that collects charged particles using supplied direct current power and performs sterilization by heating the first dust collecting plate or the second dust collecting plate using supplied alternating current or direct current power. According to claim 10,
The charging portion is formed of a first charging plate to which a high voltage is applied and a second charging plate spaced apart from the first charging plate and grounded,
The first charge plate includes a plurality of carbon fiber strands, one end of which is fixed to the first charge plate and the other end of which rises toward the second plate by electrostatic force to generate ions when a high voltage is applied to the first charge plate. A wearable air purification device that is spaced apart. According to claim 12,
The first charging plate and the first dust collection plate are integrally formed and a high voltage is applied,
A wearable air purification device in which the second charging plate and the second dust collection plate are integrally formed and grounded. According to claim 10,
A wearable air purification device further comprising a gas adsorption unit in which gas adsorption plates coated with a gas adsorption layer are spaced apart to adsorb gas contained in air flowing between the gas adsorption plates. According to claim 14,
The charging portion is formed of a first charging plate to which a high voltage is applied and a second charging plate spaced apart from the first charging plate and grounded,
The first charge plate includes a plurality of carbon fiber strands, one end of which is fixed to the first charge plate and the other end of which rises toward the second plate by electrostatic force to generate ions when a high voltage is applied to the first charge plate. A separation is formed,
A first plate on which the carbon fiber strands of the first charge plate, the carbon fiber plate of the first dust collection plate, and the gas adsorption layer of the gas adsorption plate are formed on a single conductive film of flexible material; and
It is formed of a second plate on which an insulating layer of the first charge plate, a carbon fiber plate of the second dust collection plate, and a gas adsorption layer of the gas adsorption plate are formed on a conductive film made of a single flexible material,
The first plate and the second plate are a wearable air purifying device arranged to be spaced apart. According to clause 3,
The housing is a wearable air purification device that is separated and combined left and right or front and back. According to claim 16,
A wearable air purification device in which the housing is separated and coupled by magnetic force.

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