KR20180052821A - Air wash apparatus - Google Patents

Abstract

The present invention provides an air wash apparatus capable of lowering a pollution level of air sprayed to an entrance space. According to one embodiment of the present invention, the air wash apparatus comprises: a first air module installed in an entrance and operating a first spray device to spray air for a first curtain dividing an indoor space and an entrance space; a second air module to operate a shower spray device spraying air for shower to wipe off foreign matters to a person placed in the entrance space; a suction module to operate a suction device sucking polluted air containing the foreign matters wiped off by the air for shower; an air adjustment module controlling opening/closing of an indoor or outdoor air inlet, which sucks indoor or outdoor air to supply the air to first and second spray devices, to spray the air for the curtain and the air for shower; an Internet of things (IoT) sensor module to generate and transmit first pollution information for the indoor air; a communication module to receive the first pollution information and receive second pollution information for the outdoor air transmitted from an external server; and a control module controlling the air adjustment module based on the first and second pollution information to supply the indoor or outdoor air to the first and second spray devices.

Description

[0001] The present invention relates to an air wash apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air wash apparatus, and more particularly, to an air wash apparatus capable of removing foreign substances from a person by using air having a low dust concentration in indoor air or outdoor air.

In general, when entering or leaving a single-family house or a public house such as an apartment or an office building, they entered the house without any hygiene.

Especially, when going home after going out, various harmful foreign substances such as foreign fine dust, various pathogens and chemicals are adhered to clothes, shoe, hands and feet, and so on. It comes into the room.

Since there is no device for removing harmful foreign substances adhered to clothes or limbs at the entrance, it enters the room without removing harmful foreign matter adhering to clothing or limbs when going home from outside, And harmful foreign matter adhering to the hands and feet to contaminate the room, and even cause hygiene problems such as infection with pathogens and sickness.

In recent years, as foreign matters such as fine dusts have increased, studies are underway to lower the inclusion of foreign substances in air that is sprayed to people.

It is an object of the present invention to provide an air wash apparatus capable of lowering the pollution degree of air injected into a front space.

In addition, the object of the embodiment is to provide an air conditioner which can inject air into a doorway space using air having a low dust concentration, based on indoor dust concentration measured by an IoT sensor module installed in an indoor space and outdoor dust concentration measured by an external server And an air wash device.

It is also an object of the present invention to provide an air wash apparatus capable of sucking contaminated air containing foreign matter by air injected into a front space and spraying clean air obtained by filtering and sterilizing polluted air into a front space .

An air wash apparatus according to an embodiment of the present invention includes a first air module installed on a front porch for driving a first injector for injecting air for a curtain to distinguish between an indoor space and a front porch space, A second air module for driving a shower spraying device for spraying air for showering, a suction module for driving a suction device for sucking contaminated air including the foreign matter shaken out by the showering air, An air conditioning module for opening and closing an indoor air intake port or an outdoor air intake port for sucking indoor air or outdoor air through the first and second injection devices so that the air for the indoor air is injected, IoT sensor module, a communication module for receiving the first pollution information, and second pollution information for outdoor air transmitted from an external server And a control module for controlling the air conditioning module such that the indoor air or the outdoor air flows to the first and second injectors based on the first and second contamination information.

The IoT sensor module may generate the first contamination information corresponding to indoor dust concentration of the indoor air and transmit the first contamination information to the communication module connected to the network.

Wherein the external server generates and collects the second contamination information corresponding to the outdoor dust concentration of the outdoor air, and the communication module communicates with the external server at a predetermined time interval or in real time, .

The control module includes a recognition unit for recognizing indoor dust concentration and outdoor dust concentration based on the first and second contamination information, a comparison unit for comparing the indoor dust concentration and the outdoor dust concentration, The indoor air or the outdoor air is operated in the air cut-off mode, and when the sensor module detects the closed state of the door entrance door during the operation in the air cut-off mode, And a controller for controlling the air conditioning module to flow to the first and second injectors.

Wherein the control unit discharges the contaminated air sucked by the suction device during the dust cut-off mode operation to the outdoor space when the indoor dust concentration and the outdoor dust concentration exceed the set reference dust concentration, If the outdoor dust concentration does not exceed the reference dust concentration, clean air filtered and sterilized can be controlled to flow to the first and second injectors.

The air wash apparatus according to the embodiment has an advantage in that the degree of air pollution in the entrance space can be reduced by injecting air into the entrance space using air having a low dust concentration in the indoor air and the outdoor air.

The air wash apparatus according to the embodiment is capable of sucking indoor air or outdoor air according to the outdoor dust concentration received from the IoT sensor module and the communication module installed at a specific position in the indoor space and measuring the indoor dust concentration There is an advantage in that the air pollution degree in the entrance space can be lowered.

In the air wash apparatus according to the embodiment of the present invention, the indoor dust concentration and the outdoor dust concentration may be adjusted depending on whether the reference dust concentration is exceeded or the polluted air containing foreign matter is discharged to the outdoor space, By controlling the sterilized clean air to be re-injected into the interior space, it is possible to lower the air pollution degree in the entrance space and to perform the air cleaning function.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an air wash apparatus according to an embodiment. FIG.
2 is an operation diagram showing an air wash apparatus according to an embodiment.
3 is a view showing the configuration of the air wash apparatus and the air inlet and air outlet according to the embodiment.
4 is a control block diagram showing a control configuration of the air wash apparatus according to the embodiment.

Hereinafter, an air wash apparatus according to an embodiment will be described in detail with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an air wash apparatus according to an embodiment. FIG.

Referring to FIG. 1, the air wash apparatus 100 may include a first injection device 110, a second injection device 120, and a suction device 130.

In the embodiment, although the air wash apparatus 100 is installed in the front space S2 and is installed on the upper surface of the front door, at least one of the first and second injectors 110 and 120 and the suction apparatus 130 May be disposed on the side of the front door separately from other devices, but is not limited thereto.

The entrance space S2 represents a space formed between the indoor space S1 of the house and the outdoor space S3 of the house and may be a space where the user can take actions such as taking off shoes or putting on shoes.

The interior space S1 and the interior space S2 can be selectively communicated with each other by the door opening 10. That is, for example, when the door 10 is closed, the front space S2 can be the indoor space S1 and can be distinguished from the outdoor space S3.

The entrance space S2 is an entrance and exit space of the house, and foreign matter, fine dust and the like can be introduced by a user having foreign matter, fine dust, etc. adhered from the outdoor space S3 through the entrance door 10.

Therefore, in the door space S2, an air wash apparatus 100 for removing foreign matter, fine dust, and the like from the user entering and leaving the outdoor space S3 from the indoor space S1 may be installed in the door.

Although the first and second injectors 110 and 120 and the suction device 130 are described as being installed in one housing, the present invention is not limited thereto.

The first injector 110 can blow indoor air or outdoor air to blow air for the first curtain that distinguishes between the indoor space S1 and the front space S2, and a detailed description of the structure will be given later .

Here, the first curtain air can prevent foreign matter or the like flowing in the interior space S2 and the outdoor space S3 from flowing into the interior space S1.

The second spraying device 120 sucks in indoor air or outdoor air to generate shower air that can sweep away foreign matter, fine dust, etc. adhering to a person into the entrance space S2 defined by the air for the first curtain It can be sprayed.

The suction device 130 sucks the contaminated air containing foreign matter shaken in the door space S2 by the air for shower and supplies it to the first and second injectors 110 and 120 or to the outdoor space S3 Can be discharged.

At this time, the suction device 130 discharges clean air that has been filtered and sterilized by the sucked polluted air to the first and second injectors 110 and 120 or the outdoor space S3, thereby reducing the air pollution degree.

The entrance door 10 physically divides the entrance space S2 and the outdoor space S3 and can be operated by a hinge or a sliding method.

Further, the entrance door 10 can be installed on the door column 20, which is a fixed structure, and is not limited thereto.

2 is an operation diagram showing an air wash apparatus according to an embodiment.

Referring to Fig. 2, the operation of the air wash apparatus 100 can be started when a person enters or exits the front door space S2.

For example, in the outdoor space S3, a person can enter the entrance space S2 by opening the entrance door 10 in an open state. The air wash apparatus 100 can be operated when a person is confirmed to open the door 10 in the open state or enter the door space S2. Alternatively, the air wash apparatus 100 may be operated, but is not limited thereto, when a person enters the entrance space S2 and the entrance door 10 is closed in a closed state.

When the air wash apparatus 100 is operated, the first injecting apparatus 110 can inject curtain air that distinguishes between the indoor space S1 and the front space S2, And the suction device 130 may be operated.

That is, the second injection device 120 can spray the shower air toward the person entering the entrance space S2.

The shower air can blow out foreign materials or the like attached to the human clothes to the front space S2.

At this time, the second injector 120 can inject and flow the shower air in the vertical direction from the head of the person to the feet.

The suction device 130 can operate simultaneously with the second spray device 120 and can suck the contaminated air including foreign matter scattered by the suction force of the second spray device 120 that is higher than the air volume of the second spray device 120. [

The suction device 130 may discharge the clean air, which has been filtered and sterilized, to the first and second injectors 110 and 120 and the outdoor space S3, but is not limited thereto. At this time, the first and second injectors 110 and 120 may inject the clean air again into the curtain air and the shower air.

3 is a view showing the configuration of the air wash apparatus and the air inlet and air outlet according to the embodiment.

Referring to FIG. 3, the air wash apparatus 100 may be provided to accommodate a plurality of apparatuses inside a single housing 101. The first injection device 110, the second injection device 120, and the suction device 130 may be accommodated in the housing 101.

An air duct 60 capable of supplying indoor air or outdoor air to the first and second injectors 110 and 120 may be provided in the housing 101.

The housing 101 may be disposed on the upper surface of the door space S2 and may be disposed on the side surface of the door space S2.

The air duct 60 can be understood as a passage for supplying indoor air or outdoor air to the first and second injectors 110 and 120 in the interior of the housing 101.

The first injector 110 is connected to a first intake port 111 through which indoor air and outdoor air can flow into the first injector 110 and a second intake port 111 through which the air sucked from the first intake port 111 flows into the inlet space S2 And a first fan 113 for generating curtain air flowing from the first suction port 111 to the first discharge port 112.

The first injector 110 may further include a motor for rotating the first fan 113. The first inlet 111 of the first injector 110 may communicate with the air duct 60.

The first injector 110 may be disposed in a direction that is the farthest from the entrance door 10 in the interior of the housing 101. That is, since the indoor space S1 and the front space S2 are separated from each other at the position where the first injector 110 is disposed, the first injector 110 is installed at a position capable of providing a sufficient inlet space S2 .

The second injector 120 is connected to the second inlet 121 through which indoor air and outdoor air can be introduced into the second injector 120 and the air sucked from the second inlet 121 through the inlet space S2 And a second fan 123 for generating shower air flowing from the second suction port 121 to the second discharge port 122. [

The second injector 120 may further include a motor for rotating the second fan 123. In addition, the second discharge port 122 may further include a guide unit 124 that can adjust the flow direction of the air discharged into the interior space S2. The second suction port 121 of the second injection device 120 may communicate with the air duct 60.

The second injection device 120 may be disposed at one side of the first injection device 110 inside the housing 101.

The suction device 130 includes a third suction port 131 for sucking contaminated air containing foreign matter from the inlet space S2 and a third discharge port 131 for discharging the air sucked from the third suction port 131 to the outdoor space S3. And a third fan 133 for generating air flowing from the third inlet 131 to the third outlet 132. In addition, the suction device 130 may further include a motor for rotating the third fan 133.

The suction device 130 may be disposed in the interior of the housing 101 in a direction adjacent to the entrance door 10. The third suction port 131 may be exposed to the outside through a part of the housing 101. For example, the third suction port 131 may be opened toward the front space S2. At this time, the third suction port 131 is provided with a filter and a device capable of sterilization, so that clean air that has been filtered and sterilized can be discharged from the inlet space S2.

In the meantime, the air wash apparatus 100 includes an air duct 60, an indoor air in the indoor space S1 and an outdoor air in the outdoor space S3 are connected to the first and second injectors 110 and 120, And may include an intake port 41 and an outdoor air intake port 40.

The air wash apparatus 100 may further include an exhaust port 50 through which the clean air discharged from the suction device 130 can be discharged to the outdoor space S3.

The indoor intake port (41) and the outdoor air intake port (40) can be selectively opened or closed. The indoor intake port (41) and the outdoor air intake port (40) can communicate with the air duct (60). For example, when the indoor intake port 41 is opened, the outdoor intake port 40 can be closed.

The indoor air intake port 41 may be disposed on one side of the housing 101 and disposed on the indoor space S1 or the indoor space S2. The outdoor air intake port 40 can communicate with the outdoor space S3 through a part of the door post 20 or through a part of the door entrance door 10. [

The exhaust port 50 can penetrate a part of the door pillar 20 or can communicate with the outdoor space S3 through a part of the door entrance door 10. The discharge port (50) can communicate with the third discharge port (132) of the suction device (130).

The outdoor air inlet 40 and the air outlet 50 may further include a filter unit 70 for filtering foreign matter contained in the outdoor air of the outdoor space S3.

The filter portion 70 may be disposed in at least one of the outdoor air inlet port 40 and the air outlet port 50. For example, when the filter unit 70 is provided in the outdoor air intake port 40, the air flowing into the indoor space S1 from the outdoor space S3 can be supplied to the clean air from which the foreign substance is removed.

4 is a control block diagram showing a control configuration of the air wash apparatus according to the embodiment.

Fig. 4 briefly explains or omits explanations of the configurations described in Figs. 1 to 3.

4, the air wash apparatus 100 includes a first air module 210, a second air module 220, a suction module 230, an air conditioning module 240, an IoT sensor module 250, A module 260, a sensor module 270, and a control module 280.

The first air module 210 may drive the first injector 110 described with reference to FIGS.

That is, the first air module 210 injects curtain air ar in the first injector 110 under the control of the control module 280 to divide the interior space S1 and the interior space S2 .

Here, the curtain air ar may be sprayed in a downward direction, that is, in a vertical direction, from the top of the front door, and the air volume of the curtain air ar may be adjusted by the air for shower sprayed by the second air module 220, The present invention is not limited thereto.

The first air module 210 is turned on at the same time as the second air module 220 under the control of the control module 280 to spray the curtain air ar, It is possible to start the air blowing operation at a point earlier than the on-operation point and to spray the curtain air ar.

The first air module 210 may be turned off at the same time as the second air module 220 in accordance with the control of the control module 280 to block the air ar for the curtain to be ejected, Off operation of the curtain air ar, which is later than the off-operation time of the air conditioner 230, and is not limited thereto.

The second air module 220 can inject the shower air into the front space S2 in the second injection device 120 under the control of the control module 280. [

Here, the second air module 220 operates at a time point after the on-operation time of the first air module 210 to spray shower air, So that the shower air can be sprayed.

At this time, the shower air may be sprayed in a downward direction, that is, in a vertical direction or in a lateral direction, that is, in a diagonal direction, from an upper part of the front porch, and when the second injection device 120 is installed on the side of the front porch But it is not limited thereto.

The suction module 230 is operated at the same time point as the first and second air modules 210 and 220 under the control of the control module 280 or before the operation time of the first and second air modules 210 and 220 But it is not limited thereto.

However, since the suction module 230 must suck the contaminated air including the foreign matter blown out by the shower air, it operates at a time point similar to that of the shower air or prior to the shower air .

In addition, the suction module 230 can be stopped and operated at the same time as the first and second air modules 210 and 220 under the control of the control module 280. And may be stopped after the injection stop point of the second air module 220.

The air conditioning module 240 is connected to the indoor air intake port 41 and the outdoor air intake port 41 so that indoor air or outdoor air flows into the first and second injectors 110 and 120 so that the curtain air ar and the shower air are sprayed. The opening and closing of the intake port 40 can be adjusted.

That is, the air conditioning module 240 adjusts one of the indoor intake port 41 and the outdoor air intake port 40 to the open state and the other to the closed state under the control of the control module 280, (110, 120).

The IoT sensor module 250 may be installed at a specific position in the indoor space S1. That is, the IoT sensor module 250 may be an object internet capable of short-range communication with the communication module 260.

In an embodiment, the IoT sensor module 250 is described as performing near field communication, but is not limited thereto.

The IoT sensor module 250 measures the indoor dust concentration of the indoor air in the indoor space S1 and generates the first contamination information d1 corresponding to the indoor dust concentration and transmits the first contamination information d1 to the communication module 260 .

The communication module 260 may communicate with the external server SV at a predetermined time interval or in real time to receive the second contamination information d2 corresponding to the outdoor dust concentration of the outdoor air in the outdoor space S3.

Here, the external server SV is a server that provides weather-related information such as a broadcasting station, and can generate and collect second pollution information d2 for the outdoor dust concentration.

In the embodiment, the outdoor space S3 may be the entire space corresponding to the outside of the entrance door 10, but is not limited thereto.

The communication module 260 may transmit the first contamination information d1 and the second contamination information d2 transmitted from the IoT sensor module 250 to the control module 280. [

The sensor module 270 can output a closing signal ap1 that senses the closed state of the door entrance door 10 and an open signal ap2 that senses the open state of the door entrance door 10. [

In the embodiment, the sensor module 270 is described as a proximity sensor (not shown) that outputs a closing signal ap1 and an open signal ap2 according to the closed state and open state of the door entrance door 10, 10 may include a camera sensor, that is, an image sensor, for outputting an image of a closed state and an open state, a human position, and a garment state, but the present invention is not limited thereto.

At this time, the sensor module 270 can be installed in any one of the door entrance door 10 and the door post 20. If the proximity sensor is included, the side of the door entrance door 10 and the side of the door post 20 It is possible to output the closing signal ap1 and the open signal ap2 depending on whether or not the side faces are mutually sensing.

The control module 280 may include a recognition unit 282, a comparison unit 284, and a control unit 286.

The recognition unit 282 can recognize the indoor dust concentration and the outdoor dust concentration based on the first and second contamination information d1 and d2 transmitted from the communication module 260. [

That is, the recognition unit 282 combines the first and second contamination information d1 and d2 converted by the digital communication method with respect to each of the indoor dust concentration and the outdoor dust concentration according to the set recognition method, And the outdoor dust concentration can be recognized.

The comparing unit 284 can compare the indoor dust density and the outdoor dust density recognized from the recognizing unit 282. [

That is, when the indoor dust concentration and the outdoor dust concentration are inputted, the comparing unit 284 compares the indoor dust concentration and the outdoor dust concentration with each other, and if the indoor dust concentration is lower than the outdoor dust concentration, And outputs the second comparison signal b2 when the outdoor dust concentration is lower than the indoor dust concentration.

The control unit 286 operates in the air cutoff mode when the open signal ap2 is input from the sensor module 270 and switches to the dust cutoff mode when the close signal ap1 is input during the air cutoff mode.

At this time, before the operation of the air cutoff mode and the dust cutoff mode, the control unit 286 may control the indoor air or the outdoor air according to one comparison signal input from the comparator 284, among the first and second comparison signals b1 and b2. The air conditioning module 240 can be controlled to suck air.

That is, when the first comparison signal b1 is inputted from the comparator 284, the controller 286 sucks the room air during operation in the air cut-off mode and the dust cut-off mode, So that the air conditioning module 240 can be controlled so that the war is sprayed.

On the contrary, when the second comparison signal b2 is inputted from the comparator 284, the controller 286 sucks the outdoor air during operation in the air cutoff mode and the dust cutoff mode, The air conditioning module 240 can be controlled so that a war for the air is injected.

The control unit 286 operates the first air module 210 to distinguish the indoor space S1 from the front space S2 when the open signal ap2 is input from the sensor module 270. [ It is possible to control the curtain air ar to be sprayed.

The control unit 286 can control the curtain air ar to a first blocked air flow rate during the air cutoff mode operation so that the outdoor air flows into the indoor space S1 in the open state of the door entrance door 10. [ .

When the closing signal ap1 is inputted from the sensor module 270 during the air cutoff mode operation, the control unit 286 switches the air cutoff mode to the dust cutoff mode, It is possible to control the first air module 210 to be injected with a larger second air flow rate.

In addition, the controller 286 may control the second air module 220 and the suction module 230 to operate so that the shower air is blown into the dust cut-off mode.

At this time, the control unit 286 controls to spray the operation time of the suction module 230 and the shower air war at the same time within the error range, or to control the operation of the shower air after the operation of the suction module 230 ) Is injected, but is not limited thereto.

Here, the control unit 286 may increase the suction force according to the operation of the suction module 230 to be larger than the air volume of the shower air, but is not limited thereto.

The control unit 286 may control the operation of the second air module 220 and the suction module 230 according to the branch inspiratory pattern set during the first predetermined time period, have.

That is, the branch intake pattern may represent a pattern in which the second injection device 120 and the suction device 130 are repeatedly driven according to the predetermined number of times.

Accordingly, the controller 286 controls the second air module 220 so that the shower air is sprayed from the second injector 120 during the first predetermined time during the first predetermined time, The suction device 130 can control the suction module 230 to suck the contaminated air including the foreign matter shaken from the person in the front space S2 by the shower air for a second time after the elapse of a predetermined time .

At this time, if the indoor dust concentration and the outdoor dust concentration do not exceed the reference dust concentration, the control unit 286 outputs the clean air, which has been filtered and sterilized by the suction unit 130, Can be controlled to flow to the devices (110, 120).

However, if the indoor dust concentration and the outdoor dust concentration exceed the reference dust concentration, the control unit 286 can control the polluted air sucked in the suction unit 130 to be discharged to the outdoor space S3.

The control unit 286 controls the second injection device 120 to spray the shower air for a first time period and controls the inhalation of the shower air for a second time period So that the apparatus 130 can control the contaminated air to be sucked.

At this time, the control unit 286 controls the air volume of the shower air sprayed by the second injector 120 to be decreased from the injection start point to the injection stop point, Can be controlled to be increased from the suction start point to the suction stop point.

When the first predetermined time elapses during operation in the dust cutoff mode, the control unit 286 controls the second air module (not shown) to stop the suction of the contaminated air and the spraying of the shower air by the suction device 130 220 and the suction module 230, respectively.

That is, the control unit 286 may control to stop the spraying of the shower air when the first predetermined time elapses, and then stop the driving of the suction device 130. [

When the suction device 130 is stopped, the control unit 286 switches the dust cut-off mode to the air cut-off mode and controls the injection of the curtain air ar after the second predetermined time elapses have.

The embodiments described above are not limited to the configurations and methods described above, but the embodiments may be configured by selectively combining all or a part of the embodiments so that various modifications can be made.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims (11)

A first air module installed on a front porch for driving a first injector for injecting curtain air which distinguishes between an indoor space and a front porch space;
A second air module for driving a shower spraying device for spraying air for showering off a foreign object from a person located in the entrance space;
A suction module for driving a suction device that sucks contaminated air including the foreign matter shaken out by the shower air;
An air conditioning module for opening and closing an indoor air intake port or an outdoor air intake port for sucking indoor air or outdoor air through the first and second injectors so that the curtain air and the shower air are injected;
An IoT sensor module for generating and transmitting first pollution information for the indoor air;
A communication module for receiving the first pollution information and second pollution information for outdoor air transmitted from an external server; And
And a control module for controlling the air conditioning module such that the indoor air or the outdoor air flows to the first and second injectors based on the first and second contamination information. The method according to claim 1,
The IoT sensor module includes:
Generates the first contamination information corresponding to indoor dust concentration of the indoor air, and transmits the first contamination information to the communication module connected to the network. The method according to claim 1,
The external server comprises:
Generating and collecting the second contamination information corresponding to the outdoor dust concentration of the outdoor air,
The communication module includes:
And communicates with the external server at a predetermined time interval or in real time to receive the second contamination information. The method according to claim 1,
The communication module includes:
And performs an Ethernet communication with the external server by performing short-range communication with the IoT sensor module. The method according to claim 1,
Further comprising a sensor module for sensing a closed and open state of a door entrance door of the door,
The sensor module includes:
A proximity sensor and a camera sensor. 6. The method of claim 5,
The control module includes:
A recognition unit for recognizing indoor dust concentration and outdoor dust concentration based on the first and second contamination information;
A comparison unit comparing the indoor dust concentration and the outdoor dust concentration; And
When the sensor module detects that the doorway door is opened, the air conditioner operates in an air cutoff mode, and when the sensor module detects the doorway door being closed in operation in the air cutoff mode, And a control unit for controlling the air conditioning module such that air or the outdoor air flows to the first and second injectors. The method according to claim 6,
Wherein,
And when the indoor dust concentration is lower than the outdoor dust concentration, outputs the second comparison signal to the control unit when the first comparison signal and the outdoor dust concentration are lower than the indoor dust concentration. 8. The method of claim 7,
Wherein,
When the first comparison signal is input, the controller controls the air conditioning module such that the indoor air flows to the first and second injectors when operating in the air cutoff mode and the dust cutoff mode. And controls the first and second air modules such that at least one of the air for showering is controlled in air volume. 8. The method of claim 7,
Wherein,
When the second comparison signal is inputted, the outdoor air controls the air conditioning module so that the outdoor air flows to the first and second injectors when operating in the air cutoff mode and the dust cutoff mode, And controls the first and second air modules such that at least one of the air for showering is controlled in air volume. 8. The method of claim 7,
Wherein,
Wherein the control unit controls the suction module such that the contaminated air suction unit including the foreign matter in accordance with the shower air injected into the door space is sucked at a predetermined suction force in the dust cut-off mode operation. 11. The method of claim 10,
Wherein,
Wherein when the indoor dust concentration and the outdoor dust concentration exceed a predetermined reference pollution degree, the polluted air sucked in by the suction device during the dust-off mode operation is discharged to the outdoor space,
Wherein the clean air filtered and sterilized by the polluted air is controlled to flow to the first and second injectors when the indoor dust concentration and the outdoor dust concentration do not exceed the reference pollution degree.

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