KR101870225B1

KR101870225B1 - A smart mask

Info

Publication number: KR101870225B1
Application number: KR1020170008730A
Authority: KR
Inventors: 심민혁
Original assignee: (주)바이오융합기술
Priority date: 2017-01-18
Filing date: 2017-01-18
Publication date: 2018-06-22

Abstract

A smart mask is provided. According to an embodiment of the present invention, there is provided a smart mask comprising: a mask body part worn to cover a wearer's mouth and nose; An outside air supply unit for filtering the outside air to provide the inside space of the mask body unit; And a connecting hose portion connecting the inner space of the mask body portion and one end of the outside air supply portion, wherein the mask body portion includes a plurality of vent holes formed at predetermined intervals, and a plurality of vent holes formed in the plurality of vent holes, And a plurality of air-permeable membranes that open each of the above-described air holes by means of expiration.

Description

Smart mask {A SMART MASK}

The present invention relates to a smart mask, and more particularly, to a smart mask capable of preventing harmful substances contained in outside air from being sucked into a wearer's body and effectively discharging the wearer's expiration to the outside.

In general, when a cold is caught, the mask is worn for the purpose of preventing the cold wind and preventing the virus from spreading to other people. In addition, in an environment where air pollution such as dust and fine dust is severe, not only the elderly but also healthy adults wear the mask.

Such a mask is often used in the form of an earlobe connected to a cloth covering a mouth and a nose, but in recent years, dust has become finer and a conventional dust mask made of a cloth can not filter fine dust.

To solve these problems, there are also products for making the mask thicker or laminating more cloth material to block the suction of fine dust into the respiratory tract.

However, since such a fine dust mask has a low air permeability, it is inconvenient to breathe, and the gas generated at the time of breathing is not properly discharged, but stays inside the mask and then flows into the body by breathing again, And the like.

Korean Patent Publication No. 2015-0115589 (published on October 14, 2015) Korean Patent Laid-Open Publication No. 2016-0134338 (published November 23, 2016)

SUMMARY OF THE INVENTION The present invention provides a smart mask capable of preventing the harmful substances contained in the outside air from being sucked into the wearer's body and discharging the wearer's exhalation to the outside.

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

According to an aspect of the present invention, there is provided a smart mask including: a mask body part worn to cover a wearer's mouth and nose; An outside air supply unit for filtering the outside air to provide the inside space of the mask body unit; And a connecting hose portion connecting the inner space of the mask body portion and one end of the outside air supply portion, wherein the mask body portion includes a plurality of vent holes formed at predetermined intervals, and a plurality of vent holes formed in the plurality of vent holes, And a plurality of air-permeable membranes that open each of the above-described air holes by means of expiration.

In addition, the mask body unit may include a sensing module for sensing and transmitting an exhalation or an inspiration of the wearer.

The outside air supply unit includes an outside air fan for introducing outside air, an air filter for filtering outside air flowing through the outside air fan, a fan motor for driving the outside air fan, And a control module controlling the fan motor so that the flow rate of the outside air flowing through the outside air fan is controlled based on the control signal.

According to another aspect of the present invention, there is provided a smart mask including: a mask main body to be worn so as to cover a wearer's mouth and nose; A circulation hose part forming a circulation flow path and having a plurality of vent holes at a part covered by the mask body part; And an air supply unit for filtering the air in the circulation channel and providing the filtered air through the circulation channel, wherein the circulation hose is supplied with filtered air into the internal space of the mask body through the plurality of air holes, Air from the wearer's exhalation flows from the internal space of the body portion.

Further, the circulating hose portion may be gradually tapered from one side to the other side, and the pressure may gradually decrease as the air velocity increases.

In addition, the diameter of the plurality of vent holes may gradually decrease as the circulating hose portion is tapered.

The circulating hose may include a plurality of ventilation membranes respectively installed in the plurality of ventilation holes and moving toward the inside of the circulation hose portion by the exhalation of the wearer and moving to the outside of the circulation hose portion by the inspiration of the wearer .

The circulation hose may include a first ventilation membrane that is installed in a part of the plurality of ventilation holes and moves only to the outside of the circulation hose to be opened to the inspiration of the wearer, And a second ventilation membrane which moves only inside the circulation hose part and is opened to the breathing of the wearer.

The circulation hose may have a funnel shape in which the vent hole in which the first ventilation film is installed is tapered toward the outside of the circulation hose part and a vent hole in which the second ventilation film is installed is tapered toward the inside of the circulation hose part, Lt; / RTI >

The air supply unit may include an outside air fan for introducing outside air into the circulation flow channel, an air filter for filtering the outside air flowing through the outside air fan and the air in the circulation flow channel, And a control module for controlling the fan motor such that a flow rate of outside air flowing through the outside air fan is controlled based on sensing information transmitted from the sensing module.

Other specific details of the invention are included in the detailed description and drawings.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to perform breathing smoothly when worn, to maintain airtightness, and to effectively remove fine dust or the like.

In addition, it is possible to improve the health of the wearer by discharging the exhalation effectively, and to improve the usability.

1 is a diagram illustrating a smart mask according to an embodiment of the present invention.
FIG. 2 is a view showing a ventilation film provided in the mask main body of the smart mask of FIG. 1;
3 is a diagram showing a concept for controlling the operation of the smart mask of FIG.
Fig. 4 is a view showing a configuration of an outside air supply portion of the smart mask of Fig. 1;
5 is a diagram illustrating a smart mask according to another embodiment of the present invention.
Fig. 6 is a view showing a part of the circulating hose portion of the smart mask of Fig. 5;
Fig. 7 is a view showing an example of a part of the circulating hose portion of the smart mask of Fig. 6;
Fig. 8 is a view showing another example of a part of the circulating hose portion of the smart mask of Fig. 6;
Fig. 9 is a view showing another example of a part of the circulating hose part of the smart mask of Fig. 6;
FIG. 10 is a diagram showing a concept for controlling the operation of the smart mask of FIG. 5;
Fig. 11 is a view showing a configuration of the air supply portion of the smart mask of Fig. 5;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms "comprises" and / or "made of" means that a component, step, operation, and / or element may be embodied in one or more other components, steps, operations, and / And does not exclude the presence or addition thereof.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 is a diagram illustrating a smart mask according to an embodiment of the present invention. 2 is a view showing a ventilation film provided in the mask main body of the SmartMask of FIG. 3 is a diagram showing a concept for controlling the operation of the smart mask of FIG. 4 is a diagram showing the configuration of the outside air supply portion of the smart mask of FIG.

Referring to FIG. 1, a smart mask 100 according to an embodiment of the present invention includes a mask body 110 worn to cover a wearer's mouth and nose, And a connecting hose unit 130 connecting the inner space of the mask body unit 110 and one end of the outside air supply unit 120. At this time, the mask main body 110 includes a plurality of vent holes 111 formed at predetermined intervals, and a plurality of vent holes 111 provided in the vent holes 111 to open the vent holes 111 by the wearer's exhalation And includes a plurality of ventilation films (113).

Referring to FIGS. 1 to 4, the mask body 110 is mounted on the wearer's face F so as to cover the nose and mouth of the wearer so that contact between the wearer's respiratory air and outside air is blocked. The mask body 110 may include a mask body 110 and a face F in consideration of the overall shape of the face F, the shape of the nose, the shape of the face F, And a structure and a shape that can provide an excellent fit feeling so as not to occur.

A connection hose 130 is connected to one side of the mask body 110 and air supplied through the connection hose 130 is supplied into the interior of the mask body 110. Although not shown in the drawing, a structure such as a connection hole (not shown) for connecting the connection hose unit 130 may be formed on one side of the mask body unit 110.

A plurality of vent holes 111 are formed in the mask main body 110, and air can flow in and out through the vent holes 111. The size, shape, number, position, and the like of the ventilation hole 111 can be appropriately varied depending on the size, shape, and the like of the smart mask 100. As shown in the drawing, the mask main body 110 is provided with earrings such as a string, a rubber band, etc. so that the mask body 110 can be worn on the face F of the wearer.

In addition, a ventilation film 113 is positioned in each ventilation hole 111, and the ventilation film 113 opens each ventilation hole 111 by the wearer's exhalation. In addition, it is closed when the wearer is not in the state of expiration, for example, in the case of the wearer's inhalation or the wearer's short-term breathing. That is, the ventilation film 113 allows the ventilation hole 111 to be opened by the wearer's exhalation, and the ventilation hole 111 is closed by the wearer's inhalation. Such a ventilation film 113 can be formed by various structures that are opened by exhalation and can be closed by inhalation. For example, as shown in Fig. 2, the ventilation film 113 is composed of a fixing member 113a and an opening and closing member 113b. When there is an exhalation of the wearer of the smart mask 100, The vent hole 111 is opened, and when the vent is released, the vent hole 111 can be closed by moving to the original state.

At this time, it is preferable that a locking protrusion is formed on the fixing member 113a or a size of the opening and closing member 113b is formed larger than a hole formed in the center of the fixing member 113a so that the opening and closing member 113b does not enter the inside . It is preferable that the opening and closing member 113b can be made of a material having an elastic force and has a restoring force to be restored to its original state. For example, the opening and closing member 113b may be formed in the shape of a cap made of a silicon material.

Although not shown in the drawing, the vent 113 may be constituted by a valve controlled by a control signal. For example, the vent 113 may be a valve that is opened and closed by a signal sensed by the sensing module 115 of the mask body 110. Specifically, when the wearer's exhalation is sensed by the sensing module 115, if the valve opens the vent hole 111 and the inspiration of the wearer is sensed by the sensing module 115, the valve may close the vent hole 111 .

The mask body 110 may include a sensing module 115 that senses and transmits breathing or breathing of the wearer. The operation of the outside air supply unit 120 may be controlled according to information sensed and transmitted by the sensing module 115. [ This will be described in detail later.

The outside air supply unit 120 filters the outside air and provides the inside air to the inside of the mask body unit 110 through the connection hose unit 130. The outside air supply unit 120 includes an outside air fan 122 for introducing outside air, an air filter 124 for filtering outside air flowing through the outside air fan 122, The fan motor 126 and the sensing module 115 of the mask main body 110 are controlled based on sensing information transmitted from the fan motor 126 and the sensing module 115 of the mask main body 110, And a communication module 121 for receiving information transmitted from the sensing module 115 of the mask body unit 110. [ The outside air supply unit 120 includes an input module (not shown) for operating the outside air supply unit 120, an output module (not shown) for guiding the wearer's operation of the outside air supply unit 120 A storage module (not shown) for storing data to be transmitted and received, various information, and the like, and a power supply module (not shown) for supplying power to various modules.

When the outside air fan 122 is operated by the operation of the fan motor 126, the outside air is introduced through the outside air fan 122, and the introduced outside air is variously harmful substances such as fine dust, Filtered. The filtered outside air is supplied to the inner space of the mask body part 110 through the connection hose part 130. The filtered external air is supplied and the vent 113 is opened by the exhalation of the wearer of the smart mask 100 and the vent 113 is closed by the inhalation. By closing the ventilation film 113 at the time of inhalation of the wearer, the filtered air is appropriately provided to the wearer, and the breath of the wearer is discharged through the ventilation hole 111, so that a smooth breathing is achieved.

The outside air supply unit 120 can be manufactured to be wearable on the wearer's arm or the like. For example, the outside air supply unit 120 includes a housing in which an outside air fan 122, an air filter 124, a fan motor 126, a control module 128 and the like are housed, A wear band or the like. At this time, a connection structure for connecting the connection hose unit 130 may be formed at one side of the housing. For example, a connector (not shown) or the like may be formed on one side of the housing.

The outdoor fan 122 is operatively connected to the operation of the fan motor 126. When the fan motor 126 is turned off, the outdoor fan 122 is also turned off and one side of the outdoor fan 122 is closed .

The air filter 124 may be made of a nanofiber or the like formed by an electrospinning device or the like in order to filter nanoscale particles. These nanofibers can be randomly arranged by electrospinning or arranged side by side. In addition, the nanofibers may be arranged in layers with irregularly arranged nanofibers and regularly arranged nanofibers.

In one example, the nanofibers of the air filter 124 may have a size of 50 to 500 nm. The smaller the diameter of the nanofiber, the smaller the pore size, the smaller the pore size distribution, and the greater the specific surface area of the nanofiber increases the efficiency of filtering ultrafine particles. In addition, the nanofibers of the air filter 124 may have a predetermined thickness for efficient filtration. For example, the thickness of the nanofiber may be about 0.001 to 1 mm, but it is not limited thereto. In addition, the nanofibers of the air filter 124 may have a suitable pore size to filter fine dust. For example, the size of the pores of the nanofibers may be 2 탆 or less, but is not limited thereto.

The fan motor 126 provides a driving force to operate the outside air fan 122, and this fan motor 126 is controlled by the control module 128. The driving force of the fan motor 126 is controlled by the control module 128 so that the flow rate of the outside air flowing through the outside air fan 122 can be adjusted.

The control module 128 controls the fan motor 126 so that the flow rate of the outside air flowing through the outside air fan 122 is adjusted based on the sensing information transmitted from the sensing module 115. For example, the control module 128 can stop the operation of the fan motor 126 so that when the wearer's exhalation is sensed by the sensing module 115, the exhalation can be released through the ventilation hole 111, When the wearer's breath is sensed by the sensing module 115, the operation of the fan motor 126 can be started so that the wearer can breathe the filtered outside air. The driving force of the fan motor 126 can be controlled by the control module 128 and the rotational speed of the outside air fan 122 can be adjusted in accordance with the driving force of the fan motor 126, The flow rate of the outside air can be adjusted.

Here, the control module 128 receives the sensing information from the sensing module 115 through the communication module 121. The communication module 121 preferably performs short-range wireless communication with the sensing module 115. For example, the communication module 121 can communicate with the sensing module 115 in one of Bluetooth, Zigbee, Near Field Communication (NFC), and Wibree. Bluetooth is a short-range wireless communication standard that controls various electronic and information communication devices wirelessly within a radius of 10 ~ 100m, uses 2.45Ghz frequency, uses a frequency of 2.4Ghz, Controls the connection of various devices wirelessly at a communication speed of 1 Mbps.

The connecting hose 130 connects the mask body 110 and the outside air supply unit 120 and serves as a passage for supplying the air filtered by the outside air supply unit 120 to the inside of the mask body unit 110.

5 is a diagram illustrating a smart mask according to another embodiment of the present invention. 6 is a view showing a part of the circulating hose portion of the smart mask of Fig.

5 and 6, the smart mask 200 according to another embodiment of the present invention includes a mask body 210 worn to cover the wearer's mouth and nose, a circulation flow path, A circulation hose 220 having a plurality of vent holes 221 at a portion covered by the main body 210 and an air supply unit 230 for filtering the air of the circulation channel and providing the air through the circulation channel . At this time, the circulating hose 220 is supplied with the air filtered into the inner space of the mask body 210 through the plurality of vent holes 221, and the air from the inner space of the mask body 210, Air is introduced.

A part 220A of the circulating hose 220 passes through the inside of the mask body part 110. [ A plurality of vent holes 221 are positioned in a part 220A of the circulation hose 220 located inside the mask body 110 so that the wearer's exhalation, inhalation and the like flow in and out through the vent holes. The mask main body 110 is provided with earrings such as a string and a rubber band so as to be worn on the face F of the wearer.

The circulation hose 220 serves as a passage for filtering the exhalation of the wearer of the smart mask 200 and supplying it to the wearer again. The circulation hose 220 forms a circulation flow passage and a plurality of ventilation holes 221 are formed in a portion 220A of the circulation hose 220 located inside the mask main body 110. The wearer's exhalation flows into the circulating hose 220 from the inside of the mask main body 210 through the vent hole 221. The inflow air is filtered by the air supply part 230 and passes through the vent hole 221 And is supplied into the interior of the mask body 210. The vent holes 221 may have various structures for smooth air flow, which will be described later.

Although not shown in the drawing, a suction pump (not shown) may be installed inside the circulating hose 220 to smooth the flow of the circulating air through the circulation passage. It is preferable to install it in the circulating hose 220.

Fig. 7 is a view showing an example of a part of the circulating hose portion of the smart mask of Fig. 6; 8 is a view showing another example of a part of the circulating hose portion of the smart mask of Fig. 9 is a view showing another example of a part of the circulating hose part of the smart mask of Fig.

Referring to FIG. 7, the circulation hose 220 may be designed so that the pressure gradually decreases as the air velocity increases from one side to the other. Here, one side is a portion where air is supplied from the air supply portion 230, and the other side is a portion where air flows into the air supply portion 230.

At this time, the circulation hose 220 may be entirely tapered and only a part 220A of the circulation hose 220 located inside the mask body 110 may be tapered. As the circulating hose 220 is tapered, the velocity of the air flowing through the circulating flow path of the circulating hose 220 gradually increases. As the air velocity increases, the pressure inside the circulating hose 220 gradually decreases. The pressure of the portion of the circulating hose 220 through which the air filtered by the mask body 210 flows is the highest and the pressure of the portion of the circulating hose 220 through which the air escapes from the mask body 210 The lowest. The air flows from the circulating hose 220 to the mask main body 210 through the vent hole 211 and flows into the air supply part 220 through the vent hole 220. In the case of the circulating hose part 220, The air flows from the mask main body 210 to the circulating hose 210 through the vent hole 211 in the case of the portion of the circulating hose 220 through which the air flows into the main body 210. [ 7, the filtered air can be supplied to the inside of the mask body 210 at the front end portion, and the breath air of the wearer can be introduced into the circulation hose portion 220 at the rear end portion .

Particularly, the plurality of vent holes 211 can be gradually reduced in diameter as the circulating hose portion 220 is tapered (a> b> c> d> e> f). At this time, the circulation hose 220 may be entirely tapered and only a part 220A of the circulation hose 220 located inside the mask body 110 may be tapered. In addition, although not shown in the drawing, a part of the ventilation holes 211 located at the front end portion is in the shape of a funnel tapering toward the outside of the circulation hose portion, and a part of the ventilation holes 211 located at the rear end portion is tapered toward the inside of the circulation hose portion It may be a funnel shape. Accordingly, in some of the ventilation holes 211 located at the front end portion, the filtered air can be easily supplied only inside the mask body 210, and in some ventilation holes 211 located at the rear end portion, And can easily flow into the hose unit 220.

8, the circulating hose unit 220 is installed in each of the plurality of vent holes 221, moves to the inside of the circulating hose unit 220 by the exhalation of the wearer, And a plurality of ventilating membranes 223 moving to the outside of the circulating hose 220. That is, the ventilating membrane 223 is opened to the circulating hose portion 220 by the pressure of the wearer's exhalation, so that the unfiltered breathing air flows into the circulating hose portion 220, 223 are opened toward the mask body 210, and the filtered air flows into the mask body 210.

The ventilation film 223 is composed of a fixing member 223a and an opening and closing member 223b. When there is an exhalation of the wearer of the smart mask 200, the ventilation hole 111 is opened by moving in one direction by the pressure of the exhalation And when the wearer has an inspiration, the ventilation hole 111 is opened by moving in the other direction by the pressure of the inspiration. It is preferable that the size of the opening and closing member 223b coincides with the size of the fixing member 223a. The opening and closing member 223b may be made of a material having an elastic force, and preferably has a restoring force so that the opening and closing member 223b can be restored to its original state when there is no inhalation and exhalation. For example, the opening and closing member 223b may be made of a silicon material.

9, the circulating hose unit 220 is installed in a part of the plurality of vent holes 221, and moves to the outside of the circulating hose unit 220, And a second ventilation membrane which is installed in the rest of the plurality of vent holes 221 and which is only opened to the inside of the circulation hose 220 and is opened to the ventilation of the wearer. That is, there are two kinds of the ventilation holes provided in the ventilation holes 221, the first ventilation film 225 is moved only by the wearer's inhalation, and the second ventilation film 227 is moved only by the wearer's ventilation.

The first and second tubular membranes may also be composed of a fixing member (not shown) and an opening / closing member (not shown). For this purpose, the first and second ventilation films 225 and 227 may be formed with a locking protrusion (not shown) on a fixing member (not shown) or a size of the opening and closing member (not shown) So that the opening and closing member is prevented from entering in the opposite direction.

The ventilation hole 221 in which the first ventilation film 225 is installed is in the form of a funnel tapering toward the outside of the circulation hose 220 and the ventilation hole 221 in which the second ventilation film 227 is installed And may be a funnel shape that tapers gradually toward the inside of the circulating hose portion 220. With this funnel-shaped structure, the first and second ventilating membranes 225 and 227 alternately move by venting or inhaling to open and close the vent hole 221, respectively.

FIG. 10 is a diagram showing a concept for controlling the operation of the smart mask of FIG. 5; 11 is a view showing the configuration of the air supply portion of the smart mask of Fig.

Referring to FIG. 10, the mask body 210 may include a sensing module 215 that senses and transmits breathing or breathing of a wearer. The operation of the air supply unit 230 may be controlled according to the information sensed and transmitted by the sensing module 215. [

11, the air supply unit 230 includes an outside air fan 232 for introducing outside air into a circulating flow channel of the circulating flow channel unit 220, and a circulating fan 232 for circulating outside air flowing through the outside air fan 232 A fan motor 236 for driving the outside air fan 232 and a sensing module 215 for sensing the air based on the sensing information transmitted from the sensing module 215 of the mask body 210. [ And a control module 238 for controlling the fan motor 236 so that the flow rate of the outside air flowing through the outside air fan 232 is adjusted. The air supply unit 230 includes an input module (not shown) for operating the air supply unit 230, an output module (not shown) for guiding the wearer of the air supply unit 230, (Not shown), a power supply module (not shown) for supplying power to various modules, an amount of air flowing through the circulation channel, and air quality, (Not shown) for sensing the flow rate of the refrigerant, and the like. The specific configuration and operation of the air supply unit 230 are partially the same as the specific configuration and operation of the ambient air supply unit 120 described above, and a detailed description of the same configuration and operation will be omitted below.

When the outside air fan 232 is operated by the operation of the fan motor 236, the outside air is introduced through the outside air fan 232 and the introduced outside air is variously harmed by the air filter 234 Filtered. Even if the fan motor 236 does not operate, the air is continuously circulated through the circulating flow path of the circulating hose portion 220, and the circulated air is filtered through the air filter 234 to continuously supply fresh air have. Although not shown in the drawing, in order to smoothly supply the filtered air, a separate fan (not shown) for introducing circulated air may be installed in the air supply unit 230 in addition to the outside air fan 232 for outside air.

The air filtered by the air filter 234 is supplied to the inner space of the mask body 210 through the circulating hose 220. At this time, the air to be filtered by the air filter 234 may be circulated air flowing through the circulation channel, or may be circulated air combined with external air. The air filter 234 may be made of nanofibers or the like formed by an electrospinning device or the like in order to filter nanoscale particles. These nanofibers may be arranged randomly by electrospinning or arranged side-by-side, or nanofibers that are irregularly arranged and regularly arranged nanofibers may be arranged in layers.

The fan motor 236 provides a driving force for operating the outside air fan 232, and this fan motor 236 is controlled by the control module 238. The driving force of the fan motor 236 is controlled by the control module 238 so that the flow rate of the outside air flowing through the outside air fan 232 can be adjusted.

The control module 238 controls the fan motor 236 so that the flow rate of the outside air flowing through the outside air fan 232 is adjusted based on the sensing information transmitted from the sensing module 215. In particular, when the amount of air flowing through the circulation channel of the circulation channel portion 220 is small or the air quality is bad, the control module 238 controls the fan motor 236 to flow outside air through the outside air fan 232 Can be driven.

The air supply unit 230 can be manufactured in a form that can be worn on the wearer's arm or the like. For example, the air supply unit 230 includes a housing that houses an outside air fan 232, an air filter 234, a fan motor 236, a control module 238, and the like, A wear band or the like. At this time, a connection structure for connecting the circulation hose portions 220 may be formed on one side and the other side of the housing. For example, connectors (not shown) may be formed on one side and the other side of the housing, respectively.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Smart Mask
110: mask main body part 120: outside air supply part
130: connecting hose part

Claims

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A mask main body which is worn so as to cover the wearer's mouth and nose;
A circulation hose part forming a circulation flow path and having a plurality of vent holes at a portion covered by the mask main body part, the pressure being gradually reduced as the air velocity is gradually decreased from one side to the other side; And
And an air supply unit for filtering the air in the circulation channel and providing the filtered air through the circulation channel,
Wherein the circulated hose is supplied with filtered air into the inner space of the mask body through the plurality of vent holes whose diameter gradually decreases as the circulating hose portion is tapered, In which the air is introduced by the smart mask.

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5. The method of claim 4,
The circulation hose portion
And a plurality of ventilation membranes respectively installed in the plurality of ventilation holes and moving toward the inside of the circulating hose portion by the exhalation of the wearer and moving outside the circulating hose portion by the inspiration of the wearer.

5. The method of claim 4,
The circulation hose portion
A first ventilation film installed in a part of the plurality of ventilation holes and being open only to the outside of the circulation hose part to open to the inspiration of the wearer;
And a second ventilation membrane that is installed at the rest of the plurality of ventilation holes and moves only inside the circulation hose portion to open the ventilation of the wearer.

9. The method of claim 8,
The circulation hose portion
Wherein the vent hole in which the first ventilation film is installed is in the shape of a funnel tapering toward the outside of the circulation hose part and the ventilation hole in which the second ventilation film is installed is in the form of a funnel tapering toward the inside of the circulation hose part.

5. The method of claim 4,
The mask body portion
And a sensing module for sensing and transmitting the wearer's expiration or inspiration.

11. The method of claim 10,
The air-
An outdoor fan for introducing the air into the circulation channel,
An air filter for filtering the outside air flowing through the outside air fan and the air in the circulating flow passage;
A fan motor for driving the outside air fan,
And a control module for controlling the fan motor so that a flow rate of outside air flowing through the outside air fan is controlled based on sensing information transmitted from the sensing module.