WO2019059699A1

WO2019059699A1 - Electric air purifying mask

Info

Publication number: WO2019059699A1
Application number: PCT/KR2018/011208
Authority: WO
Inventors: 김경환
Original assignee: 주식회사 칼슨
Priority date: 2017-09-21
Filing date: 2018-09-21
Publication date: 2019-03-28
Also published as: KR20190033299A; KR102002878B1

Abstract

The present invention relates to a personal electric air purifying mask. The electric air purifying mask of the present invention comprises: a mask frame disposed on the face of a user; a nose cup held in a central region of the mask frame so as to ensure a space for the user's breathing; an electric fan mounted in one of frame regions on the left and right sides of the user's face, which are divided along a longitudinal axis of the mask frame, so as to suction air and supply the same to the space for the user's breathing; a filter disposed adjacent to the electric fan and along the plate surface direction of the mask frame on one side of the mask frame, so as to filter out contaminants in the suctioned air; a battery mounted on the other side of the mask frame so as to supply electric power to the electric fan; and a control board mounted on the other side of the mask frame so as to control the electric fan.

Description

Electric Air Purification Mask

The present invention relates to a small-sized lightweight general-purpose electric-powered air cleaning mask capable of breathing peacefully and having excellent cleaning ability.

Industrial air purifying respirators have been developed and used for a long time in industrial sites. Industrial electric air purifying respirator worn by workers in chemical factory, steel factory, special industrial field is a device that supplies clean air to the human body by incorporating a filter that purifies polluted air from outside by sucking outside air by electric fan .

However, such a conventional industrial electric air purifying respirator has a problem in that it is bulky, heavy, and expensive because it is equipped with a high-output electric fan, a large filter, and a large capacity battery for supplying a large amount of air. Therefore, although the industrial electric air purifying respirator has the advantage of excellent air purifying ability, it is inconvenient for a long wearing time and is limited to the industrial use currently used by the special worker.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric-powered air purification mask for general occupants, which is compact and light in size and weight of an industrial electric-powered air-purifying respirator to be worn by a general person and comfortable for a long time.

It is another object of the present invention to provide a motorized air purification mask which is capable of cleaning fine dust more than several tens times to several hundred times as much as a facial filtration type dust mask or a dust mask, .

Another object of the present invention is to provide a personal air purification mask which can be folded or folded to make it easy to carry and wear.

It is still another object of the present invention to provide a general-purpose motorized air cleaning mask that maintains an adequate air supply.

According to an aspect of the present invention, there is provided an electric air purification mask including: a mask frame disposed on a face of a user; A nose cup supported in a central region of the mask frame to secure a user's breathing space; An electric fan attached to one of a left side frame region and a right side frame region of the user's face divided along a longitudinal axis of the mask frame to supply air to the breathing space; A filter disposed adjacent to the electric fan along the direction of the surface of the mask frame to filter contaminants in the intake air; A battery mounted on the other side of the mask frame to supply electric power to the electric fan; And a control board mounted on the other side of the mask frame to control the electric fan. The electric air cleaning mask of the present invention can be reduced in size and weight by reducing the thickness of functional units such as a filter, a motorized fan, a battery, and a control board along the surface direction of the mask frame. The electric fan uses a small, thin type blow fan that can stably obtain high air flow rate with fluctuation of external flow resistance. The battery is made thin by using a rechargeable polymer battery. A thin HEPA filter is used to improve the pressure loss due to the electric fan drive. The electric air cleaning mask of the present invention requires a small amount of thinner and lighter functional units than the industrial electric air purifying respirator since the required air supply amount and the continuous use time are about 1/2 to 1/3 times that of the industrial electric air purifying respirator. That is, since electric fan, battery, and HEPA filter are used, it is possible to reduce size and weight.

Wherein the mask frame further includes a folding bend capable of folding the left frame region and the right frame region along the vertical axis, a flat region formed along the plate surface direction, and a groove portion having a predetermined depth step from the flat region And a part or all of the electric fan, the filter, the battery and the control board are mounted in the groove portion of the mask frame. The mask frame has a concave portion, that is, a groove portion having a flat region and a predetermined depth step, which are generally uniform in height along the plate surface direction. In the groove portion of the mask frame, any one of functional units such as an electric fan, a filter, a battery, and a control board is mounted.

And a fan filter housing integrally formed of a plastic resin or rubber material and housing the electric fan and the filter, wherein the fan filter housing is mounted on the one side of the mask frame. The fan filter housing is integrally formed of a plastic resin or rubber material, and the electric fan and the filter are disposed adjacent to each other along the plate surface direction, and constitute an intake passage to minimize the flow loss of the intake air.

The nose cup includes a suction valve assembly hole connected to the fan filter housing and a pressure sensing tube through hole connected to a differential pressure sensor installed on the control board. The nose cup separates from the fan filter housing, . The nose cups are easily separated from the fan filter housing and the pressure sensing tube to enhance user convenience.

According to another aspect of the present invention, there is provided an electric air purifying mask including: an air purifying mask functional unit including an electric fan, a filter, a battery, and a control board to suck outside air and to filter and supply contaminants; And a nose cup which is freely attachable to and detachable from the air purifying mask function unit and is made of opaque silicone rubber of a light color such as white so that it can easily recognize the contamination. . The electric fan, filter, battery, and control board are mounted on the fan filter housing and mask frame. The nose cup is likewise mounted on the pan filter housing or mask frame. The nose cups are made of bright colors and can easily recognize contamination. The nose cup is free to attach and detach to the electric air purification mask function unit.

Wherein the fan filter housing includes a filter mounting portion on which the filter is mounted and an electric fan mounting portion on which the electric fan is mounted, wherein the filter mounting portion and the electric fan mounting portion are disposed as adjacent single layers, And the intake air from the electric fan is sucked through the intake passage formed in the fan filter housing. The fan filter housing is seated in a concave portion or a groove portion of the mask frame, and the filter mounting portion and the electric fan mounting portion are fitted with a filter and an electric fan. The intake passages formed in the fan filter housing minimize the flow loss of the inhaled air. Therefore, the pressure loss is minimized and supplied to the suction space of the nose cup.

And a control board mounting portion on which the control board mounted adjacent to the battery mounting portion is mounted on the other side of the mask frame, wherein at least one of the one side or the other side of the mask frame And an LDE mounting unit including at least one LED unit for indicating an operation state of the electric air cleaning mask.

According to another aspect of the present invention, there is provided an electric air purification mask including: an electric fan for sucking outside air; A filter for filtering the air; A frame made of a flexible resin material having a longitudinally folded central portion including a fan filter mounting portion for mounting the electric fan and the filter; A shell made of a flexible fiber or composite fiber material; And a nose cup made of a silicone material having flexibility, and is foldable in the longitudinal direction of the center so as to be foldable.

And the amount of intake air supplied to the electric fan corresponds to 40 to 80 liters per minute.

The electric-powered air cleaning mask according to the present invention having the above-described configuration uses a thin, compact, light-weight electric fan, a battery and a filter as compared with an industrial electric-powered air purifying respirator and functions as a filter, an electric fan, The units are arranged along the direction of the surface of the mask frame made of concavo-convex shape with a thin thickness so that the thickness can be reduced and the size and weight can be reduced.

Further, the motorized air cleaning mask of the present invention can be folded or folded on the basis of the vertical center line of the center by forming a folding bend at the central portion of the mask frame and the outer shell and the nose cup material being made of a flexible material.

1 is an external perspective view of an electric air cleaning mask according to the present invention.

FIG. 2 is a perspective view showing a fan filter housing in which a motor fan and a filter are inserted in a mask frame, which is a main part of an electric air cleaning mask according to the present invention, and shows a suction path of outside air.

3 is a perspective view showing a state where a battery and a control board are mounted on a mask frame, which is a main part of an electric type air cleaning mask according to the present invention.

4 is a cross-sectional view taken along the line A-A of the electric-powered air cleaning mask according to the present invention, and is a top cross-sectional view of a mask frame which is a main part of the present invention.

5 is a cross-sectional view taken along line B-B of the electric air cleaning mask according to the present invention, showing the mounting relationship between the nose cup and the exhaust valve.

FIG. 6 is a cross-sectional view taken along the line C-C of the electric air cleaning mask according to the present invention. FIG. 6 shows an intake passage through which the intake air sucked by the electric fan passes through the intake valve and is supplied into the nose cup.

FIG. 7 is an exploded perspective view of an intake valve and an exhaust valve mounted in a nose cup in contact with a face of a user, which is a substantial part of the electric-powered air cleaning mask according to the present invention.

FIG. 8 is a front view of a motorized air cleaning mask according to the present invention.

FIG. 9 shows a state in which the electric-powered air cleaning mask according to the present invention is detached from the user's face and hooked on the neck.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The features and advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

The electric air cleaning mask 10 according to the present invention is small and light in weight and interlocks with the user's breathing to suck and supply the outside air to the space near the nose and the mouth of the user with ease using the electric fan.

The air purifying mask of the present invention is lightweight in the basic type of 80 grams to 200 grams in the advanced type equipped with the option such as goggles, but the present invention is not limited to the weight of the mask.

The air purifying mask of the present invention can protrude from the face to the front for about 15 to 30 millimeters when worn by the user. However, the present invention is not limited to the protruding thickness.

The small-sized lightweight air cleaning mask of the present invention cooperates with the respiration of the user using an electric fan to supply air. The air supply capacity of the electric fan is preferably 40 to 80 liters per minute, and more preferably 50 to 70 liters per minute.

The motorized air purifying mask 10 according to the present invention is configured such that functional units such as an electric fan 300, a filter 200, a battery 400 and a control board 500 are arranged in the direction of the surface of the mask frame 100, So that the functional units can be disposed in front of both ears. (With the respective reference numerals 2 to 3)

The outer shell 20 forms the outer surface of the electric air cleaning mask 10 and the power switch 22, the air discharge portion 24, the front LED portion 26, the air suction portion 28, And is displayed on the back side.

The shell (20) of the electric air cleaning mask (10) of the present invention is required to have flexibility, stretchability, ventilation, quick drying property and durability. As materials having such properties, swimwear fibers such as highly elastic urethane fibers, polyester, and nylon are preferable. In addition, synthetic fibers obtained by mixing natural materials such as hemp or cotton and polyester can be used. Alternatively, natural fibers such as hemp or cotton can be used alone.

The sheath 20 may also be made of a composite fiber material, such as a neo plan (rubber) layer and a neo plan sheath, in which the functional fibers are sandwiched together.

The envelope 20 of the present invention is a preferred embodiment, and a fiber material having flexibility as described above can be used.

The outer covering 20 of the present invention is attached along the periphery of the mask frame 100 (see FIG. 2) in an integrated manner (the mounting method is not shown) or the folding portion 120 , See Fig. 2).

Alternatively, the shell 20 may be detachably attached to the mask frame by dividing it into two parts, a left outer shell and a right outer shell. The outer shell 20 is attached to the folding bend 120 (see FIG. 2) at the center of the mask frame 100 Insertion is possible.

The mask frame 100 supports the inventive air purifying mask 10 inside the shell 20. The detailed structure of the mask frame 100 will be described with reference to Figs. 2 to 3. Fig.

A folded portion (29) is formed at the center of the shell (20).

The goggles 50 mounted on the top of the mask frame 100 protect the user's eyes.

The band inspection 30 includes a left earring portion 34 and a right earring portion 32 for wearing the air purifying mask 10 on the wearer's ear and includes a velcro arm 36 fixed to the back of the wearer's head, A cord 38, an extension cord 60 and an adjuster 70.

It is possible to easily detach and mount the electric air cleaning mask 10 from the user's face by using the Velcro arm /

wings

36 and 38, the extension cord 60 and the adjuster 70, It is possible to attach the extension cord to the neck of the user, thereby improving usability. In particular, the elongated strap 60 prevents the motorized air purifying mask 10 from inadvertently falling down to the ground when the motorized air purifying mask 10 is detached from the face, thereby preventing damage. All of these contents are included in the present invention.

The power switch 22 is installed on the mask frame 100 located inside the casing 20 and turns on or off the electric power of the electric air cleaning mask 10 in conjunction with the control board 500 (see FIG. 3).

The air discharge portion 24 corresponds to the outlet region of the exhaust valve 600 (see FIG. 7) mounted on the mask frame 100. In the case of the fiber composed of a single layer, the exhaust valve 600 Or the outlet 20 of the exhaust valve 600 can be exposed through the casing 20. [ In the case of composite synthetic fibers such as Neo plan suits, it is possible to remove only the rubber layer corresponding to the exhaust valve 600 and to leave the fiber layer capable of ventilating the surface.

The outer structure of the air suction portion 28 is also of the same structure as the air outlet 24.

The front LED unit 26 is provided with at least one or more LEDs on the mask frame 100. The front LED unit 26 may be formed of a fiber itself or a suitable transparent ball or transparent vinyl so that LED light can be transmitted by itself Closed.

The goggles 50 are formed in a shape of left and right separated from each other about a vertical axis extending along a folding line 120 of the mask frame 100 and a parting line extending from the folding line 120 to a structure in which two goggles 50 are mounted on the mask frame 100 . Therefore, it is possible to fold the mask frame 100 in the left and right directions based on the vertical axis line of the mask frame 100 and the parting line of the goggles. The goggles 50 are optional components, and it is possible for the user to attach or separate the goggles 50 as needed.

The mask frame 100 of the electric-powered air cleaning mask 10 of the present invention is formed by injection molding using a flexible plastic having a thickness of about 1 millimeter to 2 millimeters, that is, a soft resin.

Accordingly, the mask frame 100 can be folded right and left around the folding bend 120 formed along the longitudinal axis.

The folding bend 120 is only one example of a foldable structure. A method of thinning the thickness of the mask frame 100 locally along the longitudinal axis is possible. That is, there is a method of processing both sides of a folded portion into a notch shape having a V-shaped groove. In this case, a flexible plastic material should be used so as not to be damaged by repeated folding operations. As flexible plastic materials, PE or PP series materials are mainly used. Among them, composites mixed with LLDPE, PET and Nylon are effectively used.

In another method, a plurality of hollow shaft shapes in the longitudinal direction are formed at the ends of the coupling portions of one frame and a plurality of pins are formed in the longitudinal direction at the ends of the coupling portions of the other frame. It is also possible to use a hinge structure.

The mask frame 100 of the present invention is divided into a left frame region and a right frame region of the user's face along a vertical axis of the center.

A filter mounting groove 102 and an electric fan mounting groove 106 are provided in the left frame region. The filter 200 and the electric fan 300 may be mounted directly on the mask frame 100. In a preferred embodiment of the present invention, the filter 200 and the electric fan 300 are mounted on the fan frame housing 150 The fan filter housing 150 assembly is assembled into the filter mounting groove 102, the electric fan mounting groove 106 and the intake valve mounting groove 108 (FIG. 10) after first assembling the filter 200, the electric fan 300 and the intake valve 700. [ ) Position.

The air sucked from the outside passes through the filter 200, passes through the intake passage 154 and the electric fan 300, passes through the intake valve 700, and an air flow path is formed inside the nose cup.

At this time, the filter frame 210 to which the filter 200 is bonded is inserted into the filter mounting part 152 of the fan filter housing 150 made of resin so that it can be exchanged if necessary, and then fixed with a snap fit.

The electric fan 300 is also fitted in the groove of the fan mounting portion 156 of the fan filter housing 150 and is fixed by a snap fit, a screw or a fusing method.

When the fan filter housing 150 is made of rubber, the filter 300 and the electric fan 300, in which the filter frame 210 is fitted, can be fixed with the elastic force of the rubber by reducing the size of the groove without a separate fixing device.

The filter mounting groove 102, the electric fan mounting groove 106, the intake valve mounting groove 108, and the like are formed in the recessed portion of the mask frame 100, that is, the groove portion having a certain depth step from the flat region, And a fan filter housing 150 in an assembled state is inserted into the recessed portion and fixed with a snap fit formed on the mask frame 100 or fixed by a heat fusion method.

The filter 200 preferably uses a HEPA filter.

HEPA (High Efficiency Particulate Air Filter) has a dust collecting capability of 99.97% or more for particles of 0.3 micrometer size in the air, and a filter paper mainly uses a glass fiber mat having a diameter of 1 to 10 micrometers or less .

In the case of a conventional facial air filtering dust mask, since air flow by human breath is used, a filter paper having a large flow resistance, i.e., a large differential pressure, can not be used. That is, nonwoven fabrics of less than 100 Pa (but with air flow of 30 L / min) with a relatively low differential pressure can be used as a facial dustproof mask, but the HEPA filter having a large differential pressure is used as a face dust mask It is impossible to use an electric fan.

The collection efficiency of the nonwoven filter paper is usually 80% (KF 80) to 99% (KF 99), which is much lower than the collection efficiency of 99.97% of the HEPA filter. For the above reasons, the electric air cleaning mask has a much higher cleaning ability than the face air filtering dust mask.

The electric fan 300 is mounted on the electric fan mounting portion 156.

It is preferable to use a blower type electric fan 300 that draws air in the direction of the center axis of the rotating blade and discharges air in the direction of the normal line of rotation of the rotating blade when the electric fan 300 is operated with power applied thereto Do.

A predetermined gap is formed between the bottom surface of the electric fan 300 and the bottom surface of the electric fan mounting groove 106 when the electric fan 300 is mounted on the electric fan mounting portion 156. [ This gap becomes the intake passage 154 (see Fig. 4). The electric fan 300 sucks the air through the gap and discharges the air toward the intake valve mounting portion 158, which is the normal direction of the rotating blade.

The electric fan cover 310 is mounted on the upper portion of the electric fan 300 and the electric fan cover 310 blocks air in all directions except the bottom surface and the upper portion of the electric fan 300, 158).

Therefore, the motorized air cleaning mask 10 of the present invention can be made thin and small in size and weight despite the use of the electric fan 300 and the filter 200.

The capacity of the electric fan 300 used at this time is required to be 40 to 80 liters per minute. That is, the amount of air supplied per minute to the inside of the final nose cup 40 through the filter 200, the electric fan 300, and the intake valve 700 is required to be 40 to 80 liters.

In the present invention, by using the electric fan 300 of the blower fan type, a stable high air volume can be obtained even if the external resistance fluctuates in a thin space.

The electric fan 300 and the filter 200 of the present invention can be disposed parallel to each other in the direction of the surface of the mask frame 100 to provide a motorized air purifying mask 10 having a small thickness.

When the electric fan 300 and the filter 200 are disposed so as to overlap each other in the direction perpendicular to the plane of the plate surface of the mask frame 100, the thickness of the electric air cleaning mask 10 is slightly increased, Small and lightweight can be reduced. Accordingly, the present invention includes all of the above embodiments.

Meanwhile, while the air sucked through the filter 200 is moved to the inside of the nose cup 40 through the electric fan 300 and the intake valve 700, the flow path has a relatively small change in cross-sectional area, It is preferable that air leakage does not occur due to a gap in the path.

In order to achieve such functions, it is possible to propose a separate integral housing for housing three components of the filter 200, the electric fan 300, and the intake valve 700 at one time. The filter 200, the electric fan 300 and the intake valve 700 are disposed in a single layer adjacent to each other by using the fan filter housing 158 to minimize the thickness of the electric air cleaning mask 10, Is stable and minimizes air flow losses.

The fan filter housing 150 for achieving such functions may be made of a soft rubber material. In the case of using a rubber material, the fan filter housing 150 can be integrally formed using the elasticity of the rubber even though there is an undercut, so that the cost can be reduced and the filter 200 ), The electric fan 300, the intake valve 700, and the fan filter housing 150, thereby preventing air leakage.

Of course, it is also possible to make the fan filter housing 158 with plastic resin. When the housing is made of resin, the filter 200 and the electric fan 300 can be easily fixed by a snap fit or a heat fusion method.

The filter frame 210 is made of plastic and adheres the filter 200 with an adhesive such as, for example, an epoxy resin to prevent the contaminants from being sucked into the filter frame 210.

The filter frame 210 prevents the filter 200 from being bent or deformed and prevents contaminants from being sucked in between the filter mounting portion 152 and the filter frame 210.

6, the intake air collected in the internal space of the intake valve mounting portion 158 passes through the inside of the nose cup 40 through the intake valve 700 connected to the partition walls of the nose cup 40 and the fan filter housing 150, .

Meanwhile, in the present invention, when various types of electric fans 300 were tested for the amount of intake air supplied, when 40 to 80 liters of air was supplied per minute, most of the users The result of experiment that breathing is possible in peace is derived. More preferably 50 to 70 liters per minute of air per minute, it is confirmed that a large number of users can comfortably breathe.

The average air volume of the electric fan 300 in the 30 to 50 years old Korean average daily life is required to be 40 to 80 liters per minute based on the air supply capacity delivered to the final stage nose cup 40, It has been confirmed through experimentation that an ordinary person can breathe comfortably by supplying 50 to 70 liters per minute in the state of wearing the electric air cleaning mask 10 of the present invention.

The air supply obtained from the experiment is also in good agreement with the "respiratory fraction according to the working volume by body size" published in ISO in 2007. According to the ISO data, the worker's respiration rate at a work intensity of 6 (medium intensity) and a medium body size (height of 175 cm, weight of 70 kg) is 49 to 64 liters, which is close to the set value determined in the present invention. (ISO / TS 16976-1: 2007 (E)), First edition, 2007), the International Organization for Standardization

For reference, the industrial electric air purifying respirator is specified by the standard or law in terms of the collection efficiency and the use time. In other words, it is regulated so that it can be used for more than 5 hours on a single charge in an environment where the body is robust and the world man is working hard while satisfying the predetermined collection efficiency.

To meet the industrial electric air purifying respirator requirements, a large air supply of 120 to 240 liters per minute is normally required. Large-sized electric fans and large-sized rechargeable batteries are required to meet these specifications.

On the other hand, there is no standard for domestic electric air purification masks not only in domestic but also in the world.

The present inventor has started to develop an electric air cleaning mask according to the present invention for the purpose of replacing the conventional facial skin dust mask which is most commonly used by the general public. Therefore, it is desirable to develop a mask which is smaller in size and lighter in weight and which can be conveniently used for a long period of time, while collecting efficiency is equivalent to that of an industrial environment in which the environment is most frequently encountered, This is a specific problem.

The air supply amount of the electric fan 300 is a design factor related to the size and rotation speed of the fan, and in order to supply a large amount of air, a large and heavy electric fan should be used in proportion to the supply amount.

Accordingly, in the present invention, it is necessary to use a small-sized lightweight electric fan to secure an air supply amount of 40 to 80 liters per minute, more preferably 50 to 70 liters per minute, and to secure an air conveying means for minimizing air flow loss, By constructing an electric air cleaning mask, excellent cleaning performance and user convenience are achieved at the same time.

In the present invention, the required air volume was obtained at a rotation speed of 7,000 rpm by using a small blow fan having a size of 50 mm x 50 mm x 15 mm (width, length, thickness).

The intake valve 700 is opened and the purified air is supplied to the inside of the nose cup 40 in conjunction with the inspiration of the respiration of the wearer so that the intake valve 700 is interlocked with the exhalation of the wearer The air inside the nose cup 40 is prevented from flowing back to the electric fan 300. [

3 is a perspective view showing a state in which a battery 400 and a control board 500 are mounted on a mask frame, which is a main part of an electric air cleaning mask according to the present invention.

The battery mounting part 110 and the control board mounting part 112 are formed in one plane along the longitudinal direction of the center of the mask frame 100 according to the present invention along the direction of the surface of the mask frame, Like recess portion of the mask frame 100 in the same manner as the electric fan mounting portion 106 is.

In the preferred embodiment of the present invention, if the battery 400 and the control board 500 are integrally formed, the battery mount 110 and the control board mount 112 are separated from each other. However, if the battery 400 and the control board 500 are integrally formed, The control board 400 and the control board 500 are mounted.

The battery 400 is mounted on the battery mounting portion 110. The battery 400 includes a battery cell 404 and an explosion-proof case 402. The battery 400 supplies power to the control board 500 and the electric fan 300.

The battery 400 uses a lithium ion polymer battery in consideration of the purpose of miniaturization and weight reduction and safety. Lithium ion batteries use a liquid electrolyte, whereas lithium ion polymer batteries use gelled polymers as electrolytes. Since the electrolyte is in a quasi-solid state, the solution does not leak well, which is much safer to ignite and explode the battery.

The battery 400 specification used in the present invention has a charging capacity of 1,000 mAh, an output voltage of 3.7 V, and a weight of 20.0 g. The standard of the battery cell is 753440, and it shows the size of 7.5mm in thickness, 34mm in width and 40mm in length. Since the electric fan 300 having an input voltage of 5.0V can be continuously driven for 2 to 4 hours with only one cell, it is suitable for reducing the size and weight of the electric air purification mask 10.

In order to prevent ignition and explosion of the battery 400, a protection circuit modulation (PCM) is installed on the upper part of the battery 400. The PCM circuit stops operation when the battery 300 senses overcharge, overdischarge, or overcurrent during use, thereby safely protecting the battery 400 and the control board 500.

When the battery 400 with the built-in electric air purification mask 10 is discharged, it can be used immediately by connecting the micro USB cable to the auxiliary battery used in the smart phone. The electric air cleaning mask 10 of the present invention may have a power connection terminal (not shown) connected to the auxiliary battery. The discharged battery 400 can be reused after charging the smartphone charger by connecting it to a power connection terminal (not shown).

The explosion-proof case 402 is preferably made of a metal or high-strength flame-retardant plastic to protect the wearer's face in an emergency in which the battery cell 404 is overheated or a fire occurs. Square hexahedron shape, and only the outer one side, which is the opposite side of the face, was opened out of the six sides. The flame is directed to the opposite side of the face, that is, outside, so that at least the damage caused by the face image is prevented. The explosion-proof case 402 is a preliminary safety device for emergency situations.

A control board 500 is mounted on the control board mounting portion 112. A pressure sensing tube through-hole 113 is formed in the control board mounting portion 112. The inner pressure of the nose cup 40 through the pressure sensing tube 550 (see FIG. 4) inserted into the pressure sensing tube through hole 113 and the silicone tube 530 (see FIG. 3) Sensor 504 (see also Fig. 4).

The differential pressure sensor 504 uses an ultra-miniature semiconductor type piezoelectric sensor. Two sensors are formed in a pair so that one sensor senses the internal pressure of the nose cup 40 and the other sensor senses the atmospheric pressure. Each sensor has a hollow port, one port is connected to the pressure sensing tube 550 through the silicone tube 530, and the other port is connected to an atmospheric pressure sensing tube (not shown) to measure the atmospheric pressure .

The control board 500 is mounted with the control IC 502, the differential pressure sensor 504, and the like, and the pressure sensing tube 550 is fixed. The control board 500 performs overall control of the air cleaning mask 10 of the present invention. The differential pressure sensor 504 is connected to the pressure sensing tube 550 through the silicone tube 530 to sense the pressure inside the nose cup 40 remotely.

The control IC 502 of the control board 500 controls the rotational speed of the electric fan 300 based on the sensed signal. The control IC 502 of the control board 500 senses the pressure fluctuation inside the nose cup 40 by the user's breathing, . As a result, the amount of air supplied to the inside of the nose cup 40 is controlled by interlocking with the user's inhalation and exhalation, so that the user can comfortably breathe for a long time.

The nose cup 40 keeps airtight to the outside to protect the user from external contaminants and also prevents pressure fluctuations inside the abnormal nose cup 40. The pressure in the breathing space inside the north cup 40 fluctuates due to the user's inhalation and exhalation. The differential pressure sensor 504 senses the pressure fluctuation through the pressure sensing tube 550 and outputs a sensing signal to the control IC 502. [ .

The control IC 502 accelerates the rotation of the electric fan 300 when the user inhales and decelerates the number of rotations of the electric fan 300 when the user exhales.

Therefore, the user can suck sufficient air supplied by the acceleration of the electric fan 300 in the case of inspiration. In the case of exhalation, the electric fan 300 reduces the amount of air supplied by deceleration, I can spit it out.

The controller IC 502 controls the rotational speed of the electric fan 300 as well as the on / off state of the electric fan 300 by using a signal sensed by the differential pressure sensor 504, Time, acceleration speed, and deceleration speed. Therefore, the user can control the rotational speed of the electric fan 300 even in the case of loose movement or heavy exercise, and supply the air supply amount necessary for breathing in each case, so that the user can enjoy comfortable breathing for a long time.

Particularly, the exhalation air including moisture and carbon dioxide does not remain in the nose cup 40 but passes through the exhaust valve 600 (see FIG. 5) and is discharged to the outside. Therefore, since there is always clean and dry air in the respiratory space inside the nose cup 40, the user is not adversely affected by moisture and carbon dioxide, so that comfortable respiration for a long time is possible.

An external LED mounting portion 114 and an internal LED mounting portion 116 are installed on one side of the mask frame 100. An external LED 510 having a high luminance is installed on the external LED mounting portion 114, An internal LED 520 having a relatively low luminance and various colors is installed.

The external LED 510 uses a high-brightness LED for easy recognition by an outside person to inform an outside person of whether or not the user of the electric air cleaning mask 10 is in a respiratory anomaly state. The light is directed to the front, Position.

The internal LED 520 uses LEDs of various colors of relatively low brightness so that the user can easily recognize the operation state of the electric air purifying mask 10, Is located on the upper side of the electric air cleaning mask (10). In the drawing, it is also possible to install it at a position adjacent to the right eye of the user, but at a position adjacent to the left eye.

FIG. 4 is a cross-sectional view taken along the line A-A of the electric-powered air cleaning mask according to the present invention, and is a plan sectional view of a mask frame 100 which is a main part of the present invention.

External air is sucked by the rotation of the electric fan 300. The intake air passes through the filter 200 and enters the intake passage 154 formed in the fan filter housing 150, The intake air sucked in the axial direction is discharged to the upper portion in the drawing and discharged to the exhaust valve mounting portion 158 (see Fig. 6).

The intake air stored in the internal space of the exhaust valve mounting portion 158 is supplied to the breathing space inside the nose cup 40 after passing through the intake valve 700.

The battery 400 mounted on the right frame region of the mask frame 100 supplies electric power to the respective parts and the control board 500 receives the power of the battery 400 to supply electric power to the electric fan 300 and the air- (10).

A control IC 502 and a differential pressure sensor 504 are mounted on the control board 500 and various operations such as operation of the electric fan 300 of the air purifying mask 10, pressure sensing, battery protection, LED, .

The electric fan 300 operates in response to a start signal or an operation power source to suck outside air, and stops rotation of the electric fan 300 in response to a stop signal or an interruption of the operation power source.

A mask 20 is provided on the outer surface of the mask frame 100 to cover the mask frame 100 and a battery 400 and / And a wire receiving portion for receiving a wire extending from the board 500 to the electric fan 300 may be included. (The wire receiving portion is not shown in the drawings)

The pressure difference caused by the wearer's inhalation and exhalation occurs inside the respiratory space of the nose cup 40 and the control of the detection and control IC 502 of the pressure difference sensor 504 based on the pressure fluctuation of the nose cup 40 As described above.

The frame protection ribs 48 integrally formed with the nose cup 40 cover the mask frame 100.

5 is a cross-sectional view taken along line B-B of the electric type air cleaning mask according to the present invention, showing the mounting relationship between the nose cup 40 and the exhaust valve 600.

The exhaust valve 600 is connected to the nose cup 40, passes through the mask frame 100, and discharges exhalation of the wearer to the outside. The structure of the exhaust valve 600 is described in detail in Fig.

5, the exhaust valve cover 610 of the exhaust valve 600 is exposed to the outside through a hole in the casing 20, or the exhaust valve 600 is located inside the casing 20, Only holes can be formed. Alternatively, the air-permeable sheath 20 can discharge air. The present invention includes all of these cases.

6 is a CC sectional view of the electric type air cleaning mask 10 according to the present invention in which intake air sucked by the electric fan 300 is supplied to the breathing space inside the nose cup 40 through the intake valve 700 Show the inspiratory passages.

6 is a vertical cross-sectional view taken along the line C-C in Fig. 2, showing the electric fan mounting portion 156 and the intake valve mounting portion 158 of the fan filter housing 150 mounted on the mask frame 100. Fig.

The electric fan 300 is attached to the electric fan mounting groove 106 formed in the concave portion of the mask frame 100 by a snap fit or a heat fusion method and the electric fan 300 is mounted on the intake passage 154 Is sucked in the axial direction and discharged into the internal space of the intake valve mounting portion 158 which is the upper portion of the drawing.

The intake air sucked into the internal space of the intake valve mounting portion 158 located at the upper portion of the electric fan mounting portion 106 is discharged to the

intake valve diaphragms

720 and 720 of the intake valve 700 when the electric fan 300 operates, 7) is opened and supplied to the breathing space inside the nose cup 40.

On the other hand, the goggles 50 are mounted on one side of the upper end of the mask frame 100, and the goggles 50 protect the eyes and the face of the user. The goggles 50 use a transparent reinforced plastic material. Transparent reinforced plastic materials that are tinted to protect the eyes from ultraviolet rays may also be used.

An outer edge of the goggles 50 is provided with a resilient sponge or rubber goggle frame 52 to prevent the face of the user from being damaged by the goggles 50. The goggles 50 may be attached and detached easily with the mask frame 100 to provide ease of use to the user.

The goggles 50 are made in a structure in which the two goggles 50 are mounted on the mask frame 100 by being separated from each other with respect to a parting line that is a vertical axis along the folding bend 120 of the mask frame 100 . Therefore, it is possible to fold leftward and rightward with respect to the longitudinal axis.

As another embodiment, the goggles 50 made of one unit can be folded laterally on the basis of the vertical axis of the center.

7 is an exploded perspective view of an intake valve 700 and an exhaust valve 600 mounted in a nose cup 40 in contact with the face of a user which is a main part of a personal electric type air cleaning mask according to the present invention.

The nose cup 40 contacts the face of the user to keep the airtight and covers the nose and mouth of the user so that the user can suck clean air that has been polluted through the breathing space inside the nose cup.

The outer rim of the nose cup 40 corresponds to a face close contact portion which is in contact with the user's face to keep airtight, and a space between the face close contact portion and the user's face corresponds to the breathing space.

One of the main reasons why the electromotive type known purifying mask 10 has a higher collecting efficiency than the facial portion filtering mask is that it has the nose cup 40. According to the domestic standard, the face leakage rate of the dust mask (domestic standard, KF 80), which is one of the facial filtration masks, is 25%, whereas the leakage rate of the face of the electric air purification mask 10 of the present invention is 0.05% 0.5% (electric grade 1).

It can be seen that the electric air cleaning mask 10 has a dustproof efficiency 50 to 500 times higher than that of the dust mask. Therefore, it is important that the nose cup 40 is completely adhered to the user's face. Especially, it is important to ensure close contact through rigid shape design and material selection as it is difficult to make contact with the nose more than other parts because of the severe bending around the nose. If the adhesion is not complete, the pollutant leaks and is sucked into the respiratory apparatus, and the pressure inside the nose cup 40 is abnormally maintained, resulting in an operation error of the electric fan 300, resulting in an abnormal air flow control.

The nose cup 40 is formed with a pressure sensing tube through hole 44 through which the pressure sensing tube 550 is inserted.

The nose cup 40 is formed with an intake valve assembly hole 42 in which the intake valve 700 is mounted and an exhaust valve assembly hole 46 in which the exhaust valve 600 is mounted is also formed.

The suction valve 700 includes a suction valve body 710, a suction valve diaphragm 720 and a suction valve cover 730.

The exhaust valve 600 includes an exhaust valve body 630, an exhaust valve diaphragm 620, and an exhaust valve cover 610.

The intake valve body 710 is fitted in the partition wall of the intake valve mounting portion 158 formed in the fan filter housing 150 as shown in Fig. The suction valve diaphragm 720 is inserted into the suction valve body 710 so that the suction valve diaphragm 720 is separated from the suction valve body 710 when the user inhales and the air sucked air is introduced. The diaphragm 720 is brought into close contact with the intake valve body 710 to block the air flow and prevent the exhaust gas inside the nose cup 40 from flowing back to the electric fan 300. [

The suction valve cover 730 secures a suction space and prevents a portion of the user's mouth or face from interfering with the suction valve diaphragm 720.

A frame protection rib 48 is formed integrally with the nose cup 40 in the nose cup 40 and a frame protection rib 48 covers various functional units mounted on the user's face side of the mask frame 100.

The nose cup 40 is made of a opaque silicone rubber having a light color such as white, gray or ivory so that the user can easily recognize the contamination. The nose cup 40 has a suction valve assembly hole 42 and a pressure sensing tube- (44) are separated from the mask frame (100) so that the user can easily attach and detach the mask frame (100) during cleaning and replacement.

When the nose cup 40 is separated from the electric air cleaning mask 10, it is preferable that the exhaust valve 600 be mounted on and separated from the nose cup 40. In the subsequent cleaning, the exhaust valve 600 is also detachable from the nose cup 40.

The conventional nose cup of the electric type respirator is mostly black, blue, gray or transparent color, so that the pollutant can not be easily recognized. In addition, since it is difficult to separate the nose cup, it is required to wipe every corner of the nose cup by using a cloth or a tissue while the nose cup is mounted, which makes it difficult to clean the nose cup.

The present invention overcomes both of the above two disadvantages at the same time so that the contamination of the nose cup 40 can be easily recognized and the nose cup 40 can be easily separated from the mask frame 100. [ The separated nose cup 40 was made easy to wash with water.

When separating the nose cup 40 from the electric air cleaning mask 10, it is preferable that the exhaust valve 600 be separated from the nose cup 40 while being mounted.

The exhaust valve body 630 is connected to the mask frame 100 and the nose cup 40 as shown in Fig.

The exhaust valve 600 is also fitted with the exhaust valve diaphragm 620 in the exhaust valve body 610 so that the exhaust valve diaphragm 620 is separated from the exhaust valve body 610 when the user exhales, The exhaust valve diaphragm 620 is brought into close contact with the exhaust valve body 610 to block the air flow and prevent the outside air from flowing into the nose cup 40 through the exhaust valve 600.

The exhaust valve cover 610 penetrates the nose cup 40 and is exposed to the outside of the mask frame 100 or the sheath 20 and is mounted on the exhaust valve body 630.

The nose cup 40 can be easily separated and joined from the air cleaning mask 10 while the exhaust valve 600 is mounted.

When the electric air purification mask is worn, the polluted air outside is cleanly cleaned by electric fan and filter, so that the user can comfortably breathe.

The motorized air cleaning mask 10 is detached from the face and hooked to the neck of the user by means of the extension cord 60, It can be used safely.

Further, the elongated length of the motor-driven air cleaning mask 10 can be adjusted by using the extension cord 60 and the adjuster 70. The nose cup 40 can be conveniently used for a short period of time such as conversation or drinking water when the nose cup 40 needs to be separated.

In the preferred embodiment of the present invention, the user installs the motor-driven air cleaning mask 10 on the left frame region on the user basis, the filter 200 and the electric fan 300, and the battery 400 and the control board 500 ) Were installed.

As another embodiment of the present invention, it is also possible to provide the filter 200 and the electric fan 300 in the right frame region, and the battery 400 and the control board 500 in the left frame region.

In another embodiment, the filter 200, the electric fan 300, and the battery 400 may be installed on the left side and the control board 500 on the right side.

In another embodiment, the filter 200 and the electric fan 300 are installed on either the left side or the right side, and the battery 400 and the control board 500 are unitized into one unit and then mounted on the other side or the same side It is also possible to do.

Meanwhile, in order to minimize airflow loss due to flow and to simplify the assembly of parts, it is also possible to integrate the fan filter housing 150, which houses the filter, the fan, and the intake valve, into the mask frame 100 Are included in the present invention.

In addition, a space for accommodating earphones is formed on both sides of the band essay 30 made of flexible fibers, and a Bluetooth circuit unit for wireless connection to an external smart phone is mounted on the control board 500, In the state where the mask 10 is worn, it is possible to make a call or listen to music on a smart phone.

Meanwhile, the nose cup 40 of the present invention is made of a opaque silicone rubber having a bright color such as white, gray, ivory or bright chromatic color to easily recognize the contamination, and the suction valve assembly hole 42 And the pressure sensing tube through hole 44 are separated from each other, so that the user can easily attach and detach from the mask frame 100.

The envelope 20 of the present invention allows various colors to be prepared and easily attached to and detached from the mask frame 100 to suit the user's preference.

In an embodiment of the present invention, it is possible to provide an electric air cleaning mask having a thin thickness by disposing the electric fan and the filter in parallel to each other in the direction of the surface of the mask frame.

In another embodiment of the present invention, the electric fan and the filter are arranged so as to be overlapped with each other in the direction perpendicular to the plate surface direction of the mask frame, whereby the thickness of the electric air cleaning mask is slightly increased, but the overall size is reduced. Accordingly, the present invention includes all of the above embodiments.

The present invention can be modified in various ways other than the above embodiments, and thus the present invention is not limited to the above embodiments.

The electric air cleaning mask of the present invention is highly industrially applicable.

Claims

In an electric air cleaning mask,

A mask frame disposed on the face of the user;

A nose cup supported in a central region of the mask frame to secure a user's breathing space;

An electric fan attached to one of a left side frame region and a right side frame region of the user's face divided along a longitudinal axis of the mask frame to supply air to the breathing space;

A filter disposed adjacent to the electric fan along the direction of the surface of the mask frame to filter contaminants in the intake air;

A battery mounted on the other side of the mask frame to supply electric power to the electric fan; And

And a control board mounted on the other side of the mask frame to control the electric fan.
The method according to claim 1,

Wherein the mask frame further includes a folding bend capable of folding the left frame region and the right frame region along the vertical axis, a flat region formed along the plate surface direction, and a groove portion having a predetermined depth step from the flat region and,

Wherein at least one of the electric fan, the filter, the battery, and the control board is mounted in the groove of the mask frame.
The method according to claim 1,

Further comprising a fan filter housing integrally formed of a plastic resin or rubber material and housing the electric fan and the filter,

And the fan filter housing is mounted on the one side of the mask frame.
The method of claim 3,

Wherein the nose cup includes a suction valve assembly hole connected to a suction valve mounted on the fan filter housing and a pressure sensing tube through hole connected to a differential pressure sensor installed on the control board,

Wherein the nose cup is separated from the mask frame for cleaning and replacement.
In an electric air cleaning mask,

An air purifying mask function unit including an electric fan, a filter, a battery, and a control board for sucking outside air and filtering and supplying contaminants;

A mask frame supporting the air purifying mask function unit; And

Wherein the nose cup is made of a opaque silicone rubber material such as white which is freely attachable and detachable to and from the mask frame to easily recognize the contamination.
The method of claim 3,

Wherein the fan filter housing includes a filter mounting portion on which the filter is mounted and an electric fan mounting portion on which the electric fan is mounted, wherein the filter mounting portion and the electric fan mounting portion are disposed as adjacent single layers, In addition,

Wherein the suction air from the electric fan is sucked through an intake passage formed in the fan filter housing.
The method of claim 3,

And a control board mounting portion mounted on the other side of the mask frame, the battery mounting portion mounting the battery and the control board adjacent to the board in a direction of the board surface,

Wherein at least one of the one side or the other side of the mask frame includes an LED mounting portion on which at least one LED indicating an operation state of the electric air cleaning mask is mounted.
As an electric air purification mask,

An electric fan for sucking outside air;

A filter for filtering the air;

A mask frame made of a soft resin material that is foldable in the longitudinal direction at the center and includes a fan filter mounting portion for mounting the electric fan and the filter;

A shell made of a flexible fiber or composite fiber material; And

Wherein the nose cup is made of a silicone material having flexibility and is foldable in the longitudinal direction of the center.
9. The method according to any one of claims 1 to 8,

Wherein an amount of intake air supplied to the electric fan corresponds to 40 to 80 liters per minute.
6. The method of claim 5,

The electric fan and the filter are mounted on one side of the mask frame,

The battery and the control board are mounted on the other side of the mask frame,

Wherein the electric fan and the filter are arranged parallel to each other in the direction of the surface of the mask frame or in a direction perpendicular to the direction of the surface of the plate.
9. The method of claim 8,

The electric fan and the filter are mounted on one side of the mask frame,

The battery and the control board are mounted on the other side of the mask frame,

Wherein the electric fan and the filter are arranged parallel to each other in the direction of the surface of the mask frame or in a direction perpendicular to the direction of the surface of the plate.