KR20180119182A - Smart window having air cleaning system - Google Patents

Abstract

The present invention relates to a smart window having an air cleaning system, comprising: a frame mounted in a window frame; a window unit mounted on one side of the frame, securing a clear view with sunlight, and controlling transparency and opacity; and an air cleaning unit mounted on the other side of the frame for realizing an outdoor air cleaning mode which cleans the outdoor air to supply the air to the inside, and an indoor air cleaning mode which cleans the indoor air to supply the air to the inside, thereby realizing the outdoor air cleaning mode in normal times, and automatically realizing the indoor air cleaning mode to maintain the indoor air fresh if a contamination level of the indoor air is equal to or greater than a set value.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart window having an air purification system,

The present invention relates to a smart window provided on a window frame and having an air purification system capable of directly purifying outdoor air to enter the room and purifying indoor air.

Generally, the ventilator is a device that keeps the indoor air in a pleasant state by letting outdoor air into the indoor and discharging indoor air to the outdoor.

In recent years, air pollution due to environmental pollution has become serious, and dust and fine dusts have increased, and indoor air can not be kept clean by simple ventilation that circulates outdoor air and indoor air.

Accordingly, an air purifier installed in a room to purify indoor air has been increasing. However, since the air purifier installed in the room purifies the contaminated room air, there is a problem that it is difficult to keep the indoor environment always pleasant.

To solve this problem, a window type air purification system has been developed in which outdoor air is directly purified and then supplied to the room to simultaneously perform ventilation and air purification.

The conventional dust filter for windows is disclosed in Korean Patent Laid-Open Publication No. 10-2016-0104130 (Sep. 05, 2016), and includes a frame installed in a window frame, a frame installed inside the frame, And the dustproof filter sheet is a nonwoven fabric or a fibrous sheet made of a cotton material and includes a porous sorbent material which blocks inflow of fine dust and yellow dust.

However, the conventional window dust filter for windows must have air permeability that air can pass through by natural ventilation. In this case, there is a problem that the nano-sized fine dust having a relatively small particle size can not be filtered, thereby deteriorating the purification performance.

Further, when the use time has elapsed, the pores of the dustproof filter sheet become clogged due to dust or the like, so that it is necessary to replace the filter frequently, which is inconvenient to use.

Korean Patent Publication No. 10-2016-0104130 (September 05, 2016)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a smart window provided with an air purifying system provided in a window frame and having an outdoor air purifying function for directly purifying outdoor air to supply indoor air and a room air purifying function for purifying indoor air .

Another object of the present invention is to provide a smart window provided with an air purifying system capable of performing an air purifying function while securing sunlight penetration and field of view while purifying outdoor air and supplying the purified air to the room will be.

It is still another object of the present invention to provide a smart window provided with an air purification system capable of transparent and opaque control of a window by a user's choice.

According to an aspect of the present invention, there is provided a smart window having an air purifying system, comprising: a frame mounted on a window frame; a window unit mounted on one side of the frame to secure sunlight transmission and field of view and perform transparent and opaque control; And an air purifier unit installed at the other side of the frame for purifying the outdoor air and supplying the outdoor air to the indoor space and an indoor air purifying mode for purifying indoor air and supplying indoor air to the indoor space.

The window unit may include a light transmittance adjusting unit installed in a glass window mounted on the frame to convert the glass window into transparent or opaque by controlling the light transmittance of the window glass and a control unit for controlling the transparency of the glass window by controlling the voltage applied to the light transmittance adjusting unit. . ≪ / RTI >

The air purifying unit includes a housing fixed to a frame, an air inflow panel mounted on a front surface exposed to the outside of the housing to receive outdoor air, and an air cleaner mounted on a rear surface of the housing, A filter unit mounted on the first air supply unit and the second air supply unit to purify the air, and a filter unit mounted on the first air supply unit and the second air supply unit, An outdoor air purifying mode for purifying the outdoor air and supplying the outdoor air to the room, and a control unit for controlling the indoor air purifying mode to be switched to the indoor air purifying mode for purifying the indoor air, . ≪ / RTI >

The opening / closing unit includes a driving motor, a plurality of opening / closing wings mounted on the air inlet panel so as to be rotatable at predetermined intervals to open / close the air inlet panel, a first pinion gear mounted on the opening / closing blade, And a second pinion gear which is fixed to a drive shaft of the drive motor and is gear-meshed with the rack gear.

An external air quality sensor unit for measuring the air quality of the outside air is mounted on the front surface of the housing, and a first display unit for displaying outside air quality may be mounted on the rear surface of the housing.

The indoor air quality sensor unit for measuring the indoor air quality and the second display unit for displaying the indoor air quality according to the signal from the indoor air quality sensor unit may be mounted on the rear surface of the housing.

The filter unit may include a filter member having a plurality of pores formed by an electrospinning method, and a support member mounted on an edge of the filter member to support the filter member.

Wherein the filter member is made by mixing an electrospun polymer material and a solvent at a certain ratio to prepare a spinning solution, spinning the spinning solution by electrospinning to make a nanofiber, and storing the nanofiber into a porous nano- As shown in FIG.

As described above, in the present invention, the outdoor air purifying function for directly purifying the outdoor air by the one air purifying system and supplying the indoor air to the indoor space and the indoor air purifying function for purifying the indoor air are provided, and the air purifying performance can be improved.

In addition, it is possible to secure the sunlight transmission and the field of view, purify the outside air and supply it to the inside of the room, thereby performing the air purifying function while maintaining the characteristics of the window.

In addition, a smart window is provided to enable transparent and opaque control of the window according to the user's selection.

1 is a front elevational view of a smart window provided with an air purification system according to an embodiment of the present invention.
2 is a rear elevational view of a smart window provided with an air purifying system according to an embodiment of the present invention.
3 is a block diagram of a window unit of a smart window according to an embodiment of the present invention.
4 is a cross-sectional view of an air purifying unit according to an embodiment of the present invention.
5 is a configuration diagram of an opening and closing unit installed in an air supply panel according to an embodiment of the present invention.
6 is a block diagram of an air purifying unit according to an embodiment of the present invention.
7 is a perspective view of a filter unit according to an embodiment of the present invention.
8 is an enlarged view of a porous nanoweb according to an embodiment of the present invention.
9 is an enlarged view of a porous nanoweb according to another embodiment of the present invention.
10 is a sectional view of a filter member according to a second embodiment of the present invention.
11 is a cross-sectional view of a filter member according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience.

1 to 3, a smart window provided with an air purifying system according to an embodiment of the present invention includes a frame 10 mounted on a window frame, and a frame 10 mounted on one side of the frame 10 to secure sunlight transmission and viewing A window unit 20 capable of controlling the light transmittance and being transparent or opaque, and a window unit 20 mounted on the other side of the frame 10 for purifying outdoor air and supplying the indoor air to the room, And an air purification unit (30).

The frame 10 may have a rectangular frame shape and may have a structure fixed to the window frame or moved along the window frame to be opened and closed. The frame 10 may include a first mounting portion 12 on which the window unit 20 is mounted, 30 are mounted.

As shown in FIG. 3, the window unit 20 includes a light transmittance adjusting unit 26 installed on a glass window mounted on the frame 10 to control the light transmittance of the glass window to convert the glass window into transparent or opaque, And a control unit (22) for controlling the light transmittance adjusting unit (26) by operating the operation unit (24).

Here, the light transmittance adjusting unit 26 uses a magic glass, which is a laminated glass structure in which a TIO film and a liquid crystal are put together, and applies a voltage to the magic glass to convert the window unit 20 into transparent and opaque And the transparency can be freely adjusted according to the change of the voltage, so that ultraviolet ray shielding and privacy protection effect can be obtained.

The control unit 22 controls the voltage applied to the light transmittance adjusting unit 26 in accordance with a signal applied from the operation unit 24 directly operated by the user. The operation unit 24 may be an operation panel installed in the frame, a remote controller using wireless communication, a smart phone, or the like.

The air purifying unit 30 includes a housing 32 fixed to the second mounting portion 14 of the frame 10 and an air inflow portion 32 mounted on the front surface 16 exposed to the outside of the housing 32, A first air supply unit 42 and a second air supply unit 44 mounted on the rear surface 18 of the housing 32 to supply purified air to the room, Filter units 34 and 36 installed in the supply unit 42 and the second air supply unit 44 for purifying the air and a filter unit 34 and 36 installed in the first air supply unit 42 and the second air supply unit 44, And air blowing units 60 and 62 for forced blowing.

The air inlet panel 40 is provided with an outdoor air quality sensor unit 64 for detecting the air quality of the outdoor air and a user can confirm the air quality detected by the outdoor air quality sensor 64 on the rear face 18 of the housing 32 A first display unit 66 is provided.

The outdoor air quality sensor unit 64 is composed of a plurality of sensors capable of detecting various types of air quality such as outdoor air temperature, humidity, carbon dioxide, fine dust, carbon monoxide, ozone, and formaldehyde.

The first display unit 66 displays the temperature, humidity, and outdoor air of carbon dioxide, fine dust, carbon monoxide, ozone, and formaldehyde, respectively, so that the user can check the degree of contamination of the outdoor air.

An indoor air quality sensor unit 68 for measuring the air quality of the room air is installed on the rear surface of the housing 32 to measure the air quality of the room air and a second display unit 69 is installed to allow the user To be visible to the naked eye.

The indoor air quality sensor unit 68 is composed of a plurality of sensors capable of detecting various air quality such as indoor air temperature, humidity, carbon dioxide, fine dust, carbon monoxide, ozone, and formaldehyde.

The second display unit 69 displays the temperature, humidity and indoor air of the indoor air, such as carbon dioxide, fine dust, carbon monoxide, ozone, and formaldehyde, so that the user can confirm the degree of contamination of the room.

As shown in FIG. 5, an opening / closing unit 70 for opening / closing the air inlet panel 40 is mounted on one side of the air inlet panel 40. The opening and closing unit 70 includes a driving motor 72, a plurality of opening and closing blades 74 that are rotatably mounted on the air inlet panel 40 at predetermined intervals to open and close the air inlet panel 40, A rack gear 76 to which the first pinion gear 74 is gear-engaged, and a rack gear 76 fixed to the drive shaft of the drive motor 72. The first pinion gear 74, 78 of the second pinion gear 80.

When the drive motor 72 is rotated in one direction, the second pinion gear 80 is rotated and the rack gear 78 is linearly moved. Then, the first pinion gear 76 is rotated to rotate the opening / closing vanes 74 to open / close the air inlet panel 40.

The air blowing units 60 and 62 include a first air blowing unit 60 mounted on the first air supplying unit 42 and forcedly blowing air to the first air supplying unit 42 and a second air blowing unit 60 mounted on the second air supplying unit 44 And a second air blowing unit (62) for blowing air to the second air supply unit (44).

When the air blowing units 60 and 62 are rotated in the forward direction according to the signal of the control unit 22, the air is discharged to the indoor side. When the air is rotated in the reverse direction, the indoor air is sucked into the housing 32.

The filter units 34 and 36 include a first filter unit 34 mounted on the first air supply unit 42 to purify the air passing through the first air supply unit 42 and a second filter unit 34 disposed on the second air supply unit 44, And a second filter unit 36 for purifying the air passing through the second air supply unit 44.

The air purifying unit 30 of the present invention configured as described above can realize an outdoor air purifying function for purifying outdoor air and supplying it to the room, and an indoor air purifying function for purifying indoor air by circulating the room air.

First, when the outdoor air purifying function is implemented, the control unit 22 controls the drive motor 72 to rotate the opening / closing vane 74 to open the air inlet panel 40. The first air blowing unit 60 and the second air blowing unit 62 are rotated in the same positive direction to suck outdoor air and supply the air to the room through the first air supply unit 42 and the second air supply unit 44 .

At this time, air passing through the first air supply unit 42 is purified by the first filter unit 34 and supplied to the room, and air passing through the second air supply unit 44 is supplied to the second filter unit 36 And is supplied to the room.

When the indoor air purifying function is implemented, the control unit 22 controls the driving motor 72 to rotate in the reverse direction to rotate the opening / closing vane 74 in the opposite direction, so that the air inlet panel 40, Close it.

The control unit 22 rotates the first blower unit 60 in the opposite direction so that the room air is sucked into the housing 32 through the first air supply unit 42. At this time, the air sucked into the housing 32 through the first air supply unit 42 is primarily purified while passing through the first filter unit 34.

The control unit 22 rotates the second blower unit 62 in the forward direction to supply the room air introduced into the housing 32 to the room through the second air supply unit 44. [ At this time, the air supplied to the room through the second air supply unit 44 is secondarily purified while passing through the second filter unit 36.

As described above, the air purifying unit according to the present invention can simultaneously perform the function of purifying the outdoor air using the single air purifying device and supplying the indoor air to the room, and the function of purifying the indoor air by circulating it.

The outdoor air cleaning mode and the indoor air cleaning mode can be changed by the user directly operating the operation unit 24. If the air quality measured by the indoor air quality measuring unit 68 is worse than the set air quality, have.

7, the filter units 34 and 36 include a filter member 52 having a plurality of pores and a support member 50 (not shown) mounted on an edge of the filter member 52 and supporting the filter member 52 ).

The filter member 52 is formed of a porous nano-web 53 as shown in Fig. 8, and the porous nano-web 53 is formed by mixing an electrospun polymer material and a solvent at a certain ratio to prepare a spinning solution, The use solution is spun by the electrospinning method to produce the nanofibers 54, and the nanofibers 54 are accumulated so as to have the micropores 56.

The polymeric material used in the present invention may be electrospun. For example, synthetic and natural polymers may be used. One or more of these polymers may be used in combination.

Among the polymer materials, particularly preferred as the filter material of the present invention are polyacrylonitrile (PAN), polyvinylidene fluoride (PVdF), polyester sulfone (PES), polystyrene (PS), polyvinyl chloride Polyvinylchloride), polycarbonate (PC), polyurethane (PU), polyurethane (PU), polyvinylidene fluoride (PVdF) and polyacrylonitrile PES, PVdF and thermoplastic polyurethane (TPU), PVC, PC, etc. can be mixed and used.

As the spinning method applied to the present invention, it is possible to use a nozzle-mounted up-down type, a down-type spinning nozzle, and a nozzle-free spinning type, and it is possible to use a spinning method such as electrospray, centrifugal electrospinning, flash electrospinning, Either one can be used.

Since the porous nano-web 53 is manufactured by the electrospinning method, the thickness is determined according to the amount of radiation of the polymer material. Therefore, there is an advantage in that it is easy to make the thickness of the porous nano-web 53 to a desired thickness.

Therefore, since the average size of the pores and pores is determined according to the thickness of the porous nano-web 53, a pore average size suitable for filtering fine dusts of PM 2.5 or less can be manufactured.

The diameter of the nanofibers 54 is in the range of 0.5 to 3 mu m, and the average pore size is preferably 0.2 to 10 mu m or less.

Since the filter unit 34 according to the present embodiment is installed in a state exposed to the outside, the porous nano web 53 basically has a pore size that can not allow rainwater to pass through. A water repellent coating layer is formed on the surface of the porous nano web 53 to prevent rain water from penetrating into the porous nano web.

9, since the porous nano web 53 is exposed to the outside as shown in Fig. 9, the strength reinforcing layer 58 may be laminated to prevent scratches or the like from being generated on the surface of the porous nano web 53. [

The strength reinforcing layer 58 is mixed with a pigment, a binder and a solvent at a predetermined ratio and is applied to the surface of the porous nano-web 52. The pigment used for the strength reinforcing layer 58 may be black or a color pigment. Various colors and tones may be realized depending on the amount and type of pigment used.

The method of applying the strength reinforcing layer 58 may be gravure printing, coating, or the like, and it may be formed by electrospinning as well as the method of making the porous nano web 52.

The strength reinforcing layer 58 includes a binder that strengthens the strength of the porous nano-web 52, thereby enhancing the surface strength of the porous nano-web 52 and providing scratch resistance.

That is, since the porous nano-web 52 is manufactured by the electrospinning method and the nanofibers 54 are accumulated, pores 56 are formed between the nanofibers, and the strength-reinforcing layer 58 is formed of the nanofibers 54 And the porous nano web 53 is applied to the points where the porous nano webs 53 meet. Therefore, it is possible to minimize the deformation of the porous nano-web 53 against the external impact or sound pressure.

As shown in Fig. 10, the filter member according to the second embodiment includes a porous substrate 92 having a plurality of pores, a porous substrate 92 having a plurality of pores formed by the electrospinning method, And a nano web 94.

The porous nano web 94 is the same as the porous nano web 53 described in the embodiment.

The porous substrate 92 may be a thermal bond nonwoven fabric, a spunbond nonwoven fabric, a chemical bond nonwoven fabric, an airlaid nonwoven fabric, or a mixture thereof. In addition to the nonwoven fabric, the porous substrate may be formed of a fabric having pores, styrofoam, paper, a mesh, or the like.

The porous substrate and the porous nano-web may be fused by heat and may be bonded to each other by forming a double-sided adhesive tape on the edge of the porous substrate.

At this time, the thickness of the porous nano web 94 is 1 to 5 μm and the air permeability is 10 to 20 CFM.

When the porous substrate 92 and the porous nano web 94 are laminated, the total thickness may vary depending on the thickness of the porous substrate.

11, the filter member according to the third embodiment includes a porous substrate 92 having a plurality of pores, a plurality of pores formed on one surface of the porous substrate 92 and formed by the electrospinning method, And a second porous nano web 96 laminated on the other side of the porous substrate and formed by an electrospinning method.

The filter member according to the third embodiment has an air permeability of 7 to 15 CFM, and porous nano-webs are laminated on both surfaces of the porous substrate 92 to reduce the air permeability, but the filtering performance can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. Various changes and modifications may be made by those skilled in the art.

10: Frame 20: Window unit
22: control unit 24:
26: light transmittance adjusting unit 30: air purifying unit
34, 36: Filter unit 40: Air intake panel
42: first air supply unit 44: second air supply unit
50: support member 52: porous nano web
60, 62: air blowing unit 64: outdoor air quality measuring unit
66: first display unit 68: second indoor air quality measuring unit
69: second display unit 70: opening / closing unit

Claims (13)

A frame mounted on the window frame;
A window unit mounted on one side of the frame to secure sunlight transmission and field of view and perform transparent and opaque control; And
An outdoor air purifying mode installed on the other side of the frame for purifying outdoor air and supplying the outdoor air to the indoor space, and an air purifying unit for purifying the indoor air to supply indoor air to the indoor space. Window. The method according to claim 1,
Wherein the window unit comprises: a light transmittance adjusting unit installed in a glass window mounted on the frame and controlling the light transmittance of the glass window to convert the glass window into transparent or opaque;
And a control unit for controlling the transparency of the window by adjusting a voltage applied to the light transmittance adjusting unit. The method according to claim 1,
The air cleaning unit includes a housing fixed to a frame,
An air inlet panel mounted on a front surface exposed to the outside of the housing to receive outdoor air,
A first air supply unit and a second air supply unit mounted on the rear surface of the housing for supplying purified air to the room,
A filter unit mounted on the first air supply unit and the second air supply unit, respectively, for purifying air;
An air blowing unit mounted on the first air supply unit and the second air supply unit to forcibly blow air,
An opening / closing unit for opening / closing the air inlet panel;
An outdoor air purifying mode for purifying the outdoor air and supplying the indoor air to the indoor space, and a control unit for controlling the indoor air purifying mode to purify the indoor air. The method of claim 3,
The opening / closing unit includes a driving motor,
A plurality of opening / closing wings mounted on the air inflow panel so as to be rotatable at predetermined intervals to open / close the air inflow panel,
A first pinion gear mounted on the opening / closing blade,
A rack gear to which the first pinion gear is gear-
And a second pinion gear fixed to a driving shaft of the driving motor and being gear-meshed with the rack gear. The method of claim 3,
An air cleaner system having an outer air quality sensor unit for measuring the air quality of the outside air and a first display unit for displaying outside air quality on the rear surface of the housing. The method of claim 3,
And an air purifying system equipped with an indoor air quality sensor unit for measuring the indoor air quality and a second display unit for displaying the indoor air quality according to a signal from the indoor air quality sensor unit, on the rear surface of the housing. The method according to claim 1,
Wherein the filter unit comprises: a filter member having a plurality of pores formed by an electrospinning method; And
And a support member mounted on an edge of the filter member to support the filter member. 8. The method of claim 7,
Wherein the filter member is made by mixing an electrospun polymer material and a solvent at a predetermined ratio to prepare a spinning liquid, spinning the spinning solution by electrospinning to make a nanofiber, and storing the nanofiber into a porous nano- And an air purifying system including the air purifying system. 9. The method of claim 8,
Wherein the nanofiber has a diameter ranging from 0.5 to 3 mu m and an average pore size ranging from 0.2 to 10 mu m. 9. The method of claim 8,
And a water repellent coating layer formed on the surface of the porous nano web. 9. The method of claim 8,
And an air purification system in which a strength reinforcing layer for reinforcing the strength of the porous nano web is laminated on the surface of the porous nano web. 12. The method of claim 11,
Wherein the strength reinforcing layer comprises an air purification system that is mixed with a pigment, a binder for strengthening the strength, and a solvent at a predetermined ratio and is applied to the surface of the porous nano-web. 9. The method of claim 8,
Wherein the porous nano-web has a thickness of 1 to 5 탆 and an air permeability of 10 to 20 CFM.

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