KR20180113647A - Smart Windows Having Screen Function and Operating Method thereof - Google Patents

Abstract

The present invention relates to a smart window/door with a screen function, to increase a ventilation volume while applying a membrane filter capable of blocking ultrafine dust and the like having a size of particulate matter (PM) 2.5 or less, and an operation method thereof. According to the present invention, the smart window/door with a screen function comprises: a blocking member formed in a plate shape with a predetermined area to block passage of fine dust included in external air; a cover plate spaced apart from the blocking member at an interval to form a staying space where air passing through the blocking member stays; a support frame including a penetration part formed at a center to support the blocking member and the cover plate inside/outside the penetration part, having a storage space formed outside the staying space, and having an outlet to discharge the air flowing from the storage space to a room; and a blower installed in the storage space to generate suction force for discharging the external air to the outlet through the staying and storage spaces after being sucked through the blocking member.

Description

TECHNICAL FIELD [0001] The present invention relates to a smart window having an insect screen function and a driving method thereof,

The present invention relates to a smart window having an insect control function, and more particularly, to a smart window having an insect control function that increases a ventilation amount while employing a membrane filter capable of blocking ultrafine dust or the like of PM (Particulate Matter) .

In general, the screening net is a net installed on a window or a door to prevent insects such as flies, mosquitoes and moths from entering the room.

These insect screens are made of various materials such as synthetic resin such as nylon, glass fiber, metal and the like.

A typical insect screening network is formed by a mesh network in which wires are arranged at regular intervals in the horizontal and vertical directions and a grid of a predetermined size is formed. The through holes formed in the mesh network have such a size that insects or insects do not pass through.

However, the insect screen according to the prior art is unsuitable for blocking yellow dust, pollen, fine dust, etc. smaller than the size of the through hole.

In order to solve such a problem, recently, an environmental screening network capable of blocking fine pollutants such as dust dust has been proposed.

For example, there is a form in which a photocatalyst and a water repellent agent are coated or impregnated in a metal netting, a glass netting or a cloth netting. However, such an environmental screening net can exert an effect to block the penetration of insects, but there is still a limit to removing ultrafine dusts of PM2.5 or less.

On the other hand, when a window is opened for indoor ventilation, dust, raindrops, etc. can not be blocked from entering the room and the window can not be opened. System window was developed to solve this problem.

In general, the system window plays a role of introducing the outside light into the room and ventilating the room air appropriately. In the closed state, the indoor and outdoor heat flow is blocked to maintain the cooling and heating effect of the room do.

In order to ventilate the interior of such a system window, a window is opened to natural ventilation or forced ventilation is performed by a separate forced ventilation device. In general households, the former method is used.

However, the method of ventilating a room by opening a window has a problem that contaminants such as dust, various pests, pollen, etc. contained in the outdoor air are introduced, and it is not preferable because it can not open the window on a rainy or foggy day. Accordingly, in the prior art, a ventilation device capable of being opened and closed is provided in a part of the window frame to enable ventilation and heat insulation.

In addition, when an air purifier or the like is used without using a ventilator, there is a problem that fresh air from the outside is not introduced and sufficient ventilation can not be performed.

Ventilators or filters (or insect screens) provided in general system windows can block fine dust, pollen, insects, etc. but can not block ultrafine dusts, pathogens and odors of PM2.5 or less .

Korean Patent Laid-Open Publication No. 10-2015-0108537 (Patent Document 1) discloses a natural ventilation type membrane capable of blocking ultrafine dusts that are inexpensive and simply PM2.5 or less by applying a nanofiber web having an antibacterial function However, as the pore size decreases, there is a problem that the efficiency of ventilation is deteriorated due to a small amount of ventilation of the air into which the outside air flows into the room in the natural ventilation system.

Korean Patent Registration No. 10-851436 (Patent Document 2) discloses an air conditioner having a frame in which an indoor window and an outdoor window are mounted, a suction and discharge device installed on the upper and lower sides or the left and right sides of the frame so as to face each other, A multifunction window system including a fan unit that is connected to the fan unit.

The intake and exhaust device of Patent Document 2 is provided with the opening and closing means for opening and closing the flow path of the intake and exhaust air holes by the power. However, in order to control the opening and closing means for setting the indoor air flow passage of the outside air while passing through the filter provided on the narrow flow path, And a filter having a sufficient size can not be used because a filter is installed on a narrow flow path. As a result, in order to supply a sufficient amount of fresh air to the room, the operation time of the blower fan motor due to the use of the filter having a small area becomes long, and the operation cycle is shortened, so that the maintenance cost may increase.

In addition, in Patent Document 2, there is a problem that dust or foreign matter adsorbed by the operation of the filter can not be automatically cleaned, and therefore, manual operation is required.

: Korean Patent Publication No. 10-2015-0108537 : Korean Registered Patent No. 10-851436

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems, and its object is to provide a membrane filter using a nanofiber web to block ultrafine dusts, pathogens, odors, etc. of PM (Particulate Matter) A smart window having a screen filter function with increased ventilation by applying a large-area membrane filter and a forced ventilation structure, and a driving method thereof.

It is another object of the present invention to provide a smart window and a method of driving the same that have a screen function capable of increasing the service life of the membrane filter by self-cleaning the membrane filter actively and periodically and supplying high- .

It is still another object of the present invention to provide a smart window having a function of informing the user to actively or periodically replace the filter by measuring the air pressure or the negative pressure applied to the membrane filter.

Another object of the present invention is to provide a smart window capable of actively controlling forced ventilation time and period for ventilating outside air to the room by measuring the air pollution degree of the room.

In order to achieve the above object, the smart window of the present invention is formed as a plate having a predetermined area, and blocks a passage of fine dust from outside air; A cover plate spaced apart from the blocking member such that a retention space in which the air passing through the blocking member stays can be formed; The air conditioner according to any one of claims 1 to 3, further comprising: a penetrating portion provided at a center thereof for supporting the blocking member and the cover plate on the outer side and the inner side of the penetrating portion, ; And a blower installed in the accommodation space and generating a suction force for discharging outside air to the outflow port through the stay space and the accommodation space after the outside air is sucked into the shutoff member.

The smart window of the present invention can drive the blower when the air pollution degree of the room exceeds a reference value.

In addition, the blower can be driven when the illuminance of the room exceeds a reference value.

Further, when the negative pressure applied to the blocking member when the blower is driven exceeds a reference value, self-cleaning of the blocking member can be performed.

The smart window according to the present invention further includes a shutter device for partially blocking the outlet at the time of self-cleaning of the blocking member, wherein the self-cleaning of the blocking member is performed in a state in which the outlet is partially blocked by the shutter device As the blower is driven, an air flow that flows back to the blocking member through the accommodation space and the stay space can be generated in the room through the outlet.

When the blocking member is self-cleaning, the blower may be driven at a variable speed or a pulsed driving voltage may be applied to generate a shock wave current to apply an impact to the blocking member.

Wherein the shutter device comprises: a movable shutter which blocks or opens the outlet according to a vertical movement; And a driving member for moving the movable shutter upward and downward.

The driving member may be a solenoid actuator.

The driving member may include: a rack having a plurality of gears formed on a rear surface of the movable shutter; And a pinion gear-coupled to the rack to move the rack up and down.

Wherein the support frame includes a first frame which is disposed on a side of a room and has a penetration portion to which a cover plate is coupled at a center, A second frame disposed on the outdoor side and having a penetration portion to which a blocking member is coupled at a center, the second frame being opposed to the first frame; An inner spacer interposed between the first frame and the second frame, the inner spacer having an inlet communicating the retention space and the accommodation space; And an outer spacer spaced apart from the inner spacer by a predetermined distance to define the accommodation space.

Wherein the blocking member comprises: a first blocking member for blocking inflow of insects or insects; And a second blocking member attached to the first blocking member to block the fine dust from the outside air.

The second blocking member may be a membrane filter for filtering ultrafine dust less than PM2.5.

Wherein the membrane filter is a nanofiber web integrated with nanofibers and having three-dimensional micropores; And a porous support which is laminated on one side or both sides of the nanofiber web and supports the nanofiber web.

The membrane filter may have a thickness of 1 to 5 μm and a permeability of 10 to 20 cfm.

The smart window according to the present invention further includes a heater installed on the cover plate for performing heat exchange of the cool outside air when the outside air temperature is lower than the set temperature set by the user or when the temperature difference between the outside temperature and the room temperature is larger than the set value can do.

The heater may be a metal thin film having a resistivity of 1 or more or a strip type surface heating element composed of a strip of amorphous ribbon.

According to another aspect of the present invention, there is provided a method of driving a smart window, including: determining a day and a night based on a detected indoor illumination value; Measuring indoor pollution degree in case of a week, and judging whether the measured pollution degree exceeds a pollution level reference value; And if the measured degree of contamination exceeds the reference value of the pollution degree, driving the blower to discharge the filtered air having passed through the blocking member to the room through the outlet.

According to another aspect of the present invention, there is provided a method of driving a smart window, comprising: measuring a negative pressure applied to the blocking member to determine whether the negative pressure exceeds a negative pressure reference value; And driving the blower to clean the blocking member when the measured negative pressure exceeds the negative pressure reference value, driving the shutter unit to leave only a part of the outlet, and driving the blower.

The driving of the blower is driven at a variable speed to form a rhythmic air flow, thereby applying an impact to the blocking member.

The blower may be driven by applying a pulsed driving voltage to generate a shock wave to apply a shock to the blocking member.

The driving method of the smart window according to the present invention is characterized in that when the blower is driven, when the outside air temperature is lower than the set temperature set by the user, or when the temperature difference between the outside air temperature and the room temperature is larger than the set value, The method may further include a step of driving.

As described above, in the present invention, a membrane filter using a nanofiber web is used to block ultrafine dust, pathogens, and odors of PM 2.5 or less, while a large-sized membrane filter and a forced ventilation structure are applied to increase the ventilation amount . As a result, the indoor air can be maintained in a clean state with a low maintenance cost.

In addition, in the present invention, the membrane filter is self-cleaning automatically and periodically, thereby increasing the service life of the membrane filter and supplying high-quality air to the room.

Further, in the present invention, the air pressure applied to the membrane filter is measured to notify the user of the filter cleaning and replacement period, the air pollution degree of the room is measured, the forced ventilation time for ventilating the outside air to the room, Smart function can be provided.

Also, in the present invention, when the outside air temperature is measured during forced ventilation for ventilating the outside air to the room, the heat exchanger can be introduced into the room by operating a hot-wire heater installed on the cover plate when the temperature is lower than a user-

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front and rear view of a smart window having an insect screen function according to an embodiment of the present invention;
FIG. 2A is an exploded perspective view of the smart window shown in FIG. 1,
FIG. 2B is a partially exploded perspective view of the rear part of the smart window shown in FIG. 1,
FIG. 2C is an exploded perspective view of the front part of the smart window shown in FIG. 1,
3 is a sectional view taken along line AA in Fig. 1,
FIG. 4 is a schematic view illustrating an air flow direction when the smart window according to the present invention is in a normal mode; FIG.
5 is a schematic view showing a flow direction of air when a smart window according to the present invention is in a filter cleaning mode,
6A and 6B are views for schematically explaining the lifting and lowering states of the movable shutter according to the rack / pinion driving system when the smart window is in the normal mode and the filter cleaning mode, respectively;
7A and 7B are views for schematically explaining the lifting and lowering states of the movable shutter according to the solenoid actuator driving method when the smart window is in the normal mode and the filter cleaning mode,
8 is a schematic control block diagram of a smart window according to the present invention,
FIG. 9 is a flowchart illustrating a method of driving a smart window according to the present invention;
FIG. 10 is a schematic block diagram of a smart window according to the present invention applied to a single window. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: .

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

First, the smart window 100 according to an embodiment of the present invention has a symmetrical structure as shown in FIGS. 1 to 2C and includes a shielding member 110, a cover plate 120, and a support frame 130 .

In the smart window 100 according to the present invention, when the blocking member 110 has the micro pores 112b capable of blocking the ultrafine dust of PM2.5 or less, the amount of ventilation for fresh air flowing into the room A pair of blowers 140a and 140b are disposed in the accommodating spaces 137a and 137b located at both sides of the support frame 130. In addition,

The support frame 130 generally has a rectangular or square shape, and has a through hole 130a having a rectangular or square shape at its center. The shape of the support frame 130 and the through hole 130a may be determined according to the shape of the window frame or the window unit.

The blocking member 110 and the cover plate 120 have the same shape and size and correspond to the through holes 130a of the support frame 130. [

The blocking member 110 prevents insects and insects from passing therethrough and also blocks the fine dust contained in the outside air from passing therethrough. To this end, the blocking member 110 may be provided in a plate-like shape having a predetermined area and be supported by the support frame 130. The blocking member 110 may include a first blocking member 111 and a second blocking member 112. The second blocking member 112 may be attached to at least one surface of the first blocking member 111, Lt; / RTI >

For example, the first blocking member 111 may be a known mesh network to prevent insects or insects from passing therethrough, and the second blocking member 112 may be a nanofiber web.

In other words, the blocking member 110 applied to the present invention is provided with a first blocking member 111 in the form of a mesh net, which is typically used to block insects or pests, and a second blocking member 111 in the form of a nanofiber web having micropores 2 blocking member 112 is laminated or joined to the first blocking member 111 to serve as a membrane filter that can block fine dust contained in the outside air unlike the conventional insect screening net.

In addition, the smart window 100 capable of blocking fine dust according to the present invention is attached to the first screening member 111 of a mesh net shape even if the second blocking member 112 is formed of a nanofiber web having micro pores So that the coupling with the support frame 130 can be enhanced.

In the present invention, the first blocking member 111 may have a lattice shape in which a plurality of wires are arranged to intersect with each other to form a plurality of through holes 111a. However, the shape of the first blocking member 111 is not limited thereto, and the material and structure of the first blocking member 111 can be applied to both the material and the structure of the mesh net used in the known insect netting.

The first blocking member 111 is made of metal, plastic, or wood so as to withstand wind and rain. The first blocking member 111 protects the second blocking member 112 against an external environment such as wind and rain, Unit (see Fig. 10).

The first blocking member 111 may be a mesh, a mesh, a filament, a grid, or the like. In addition, the first blocking member 111 may be composed of an insect screen or a security window separated from the second blocking member 112 and installed in the system window if necessary.

The first blocking member 111 in the form of a mesh, mesh or filament may be embedded or installed inside the second blocking member 112 or the nanofiber web using, for example, silver or metal yarn, It is possible to provide an antibacterial or sterilizing function.

The second blocking member 112 of the present invention can be used by being attached to a system window provided with a conventional screen net or by using it without a system window.

If it is used as a single window, it can be configured so as to be capable of turning or sliding opening / closing to up and down or right and left when natural ventilation is desired.

The second blocking member 112 may be a nanofiber web formed in a three-dimensional network structure such that the nanofibers 112a have fine pores 112b. Any known material can be used as long as the nanofibers can form a nanofiber web layer having a three-dimensional network structure having fine pores through radiation.

At this time, the nanofiber web may be formed such that the micropores 112b have a smaller size than the through holes 111a so as to block fine dust. For example, the micropores of the nanofiber web may have an average pore size of 10 microns. However, the average pore diameter of the fine pores is not limited thereto, and the pore size may be 2.5 占 퐉 or less so as to block ultrafine dusts of PM2.5 or less. In addition, the size of the fine pores formed in the nanofiber web may be appropriately changed according to the size of fine dust that needs to be cut.

In the present invention, the second blocking member 112 may be a single-layered nanofiber web or a stack of a plurality of nanofiber webs. In addition, the second blocking member 112 may have a structure in which a nanofiber web is attached to one side or both sides of the porous support, and the porous support may be a single porous support or a plurality of porous supports have.

In addition, the porous support may be a porous substrate so that the air passing through the nanofiber web can pass therethrough. As a non-limiting example, the porous support may be any one of known fabrics, knitted fabrics and nonwoven fabrics.

The porous support may be a thermal bond nonwoven fabric, a spunbond nonwoven fabric, a chemical bond nonwoven fabric, an airlaid nonwoven fabric, or a mixture thereof.

The porous support may be a strength reinforcing layer for supporting the nanofiber web, and may be made of a material capable of improving the physical properties of the nanofiber and improving the handling property.

The porous support may be, for example, a nonwoven fabric or a woven fabric composed of a hydrophobic polymer material such as PET, PE, PP or PVC. When the porous support is laminated on both sides of the nanofiber web, can do.

The second blocking member 112 is preferably composed of a film made of a hydrophobic material disposed on the outdoor side so as to block penetration of rainwater into the inside.

In addition, when the nano-fiber web and the porous support are combined, the second blocking member 112 may be made of transparent or semitransparent material, so that natural light can be obtained simultaneously with natural ventilation.

In the present invention, the content (basis weight) of the nanofibers 112a to be electrospun to form the nanofiber web may be set in the range of 0.5 to 20 gsm (gram per square meter), preferably 1 to 5 gsm. In this case, if it is less than 0.5 gsm, there is a problem in handling due to an excessively thin film. If it is more than 20 gsm, there is no problem in use, but the cost of the process is increased due to expensive material cost. Therefore, the amount of the polymer substance dissolved in the solvent is determined in consideration of the basis weight of the resulting nanofiber.

The average pore size of the nanofiber web is 0.2 to 10.0 mu m and the fiber diameter is 0.05 to 3 mu m. It is preferable that the nanofiber web has a structure capable of minimizing the air resistance as much as possible. Do.

The average diameter of the fibers constituting the nanofiber web has a great influence on the porosity and pore size distribution of the web. The smaller the fiber diameter, the smaller the pore size and the smaller the pore size distribution.

In the present invention, the average pore size of the nanofiber web is 0.2 to 10.0 占 퐉. However, considering the size of the material to be blocked and the amount of ventilation among the rain, insect, fine dust, pollen, The average pore size of the web can be appropriately adjusted.

In the present invention, it is possible to control the diameter and the average pore size of the nanofibers so as to filter fine particles of PM10 as well as ultrafine dust of PM (Particulate Matter) 2.5.

The nanofibers produced by electrospinning are usually less than 1 μm but can be made up to 3 μm.

The polymeric material may be a synthetic polymeric material alone or in combination, and the polymeric material capable of forming the nanofibers 112a by electrospinning is not particularly limited.

Further, as the polymer material constituting the nanofibers 112a, it is more preferable that the natural and synthetic polymer materials have hydrophobic properties. As the polymer material having typical hydrophobic properties, PVDF, PVC, PC, PU, PMMA, PS, Nylon or a mixture of two or more of them may be used.

Furthermore, the nanofiber web may carry silver nanomaterials or natural materials to impart antimicrobial properties.

In the present invention, at the time of forming the nanofiber web, two or more kinds of fiber-forming polymers may be blended and blended, and the solvent may be selected from those having compatibility with the polymer material to be used, Can be produced by mixing two or more of them.

In the present invention, the electrospinning can be carried out by electrospinning, air-electrospinning (AES), electrospray, electrobrown spinning, centrifugal electrospinning, flash-electrospinning, nozzle-less spinning, bottom-up, top-down spinning, etc., and can be appropriately adopted among these processes.

The second blocking member 112 according to the present invention is formed by forming a nanofiber web and then complexing it with a porous support on one side or both sides of the nanofiber web by a thermal compression or laminating method.

When the second blocking member 112 is used as a window of a single window or a window of a system window, since both the nanofiber web and the porous substrate constituting the window are made of a hydrophobic polymer, rain and moisture penetrate from the outside into the inside . In addition, since the nanofiber web is integrated by nanofibers 112a having a diameter of less than 3 占 퐉 to have three-dimensional micropores and the average pore size is 0.2 to 10.0 占 퐉, water molecules penetrate through the pores It has the waterproof function to block the Further, as the diameter of the fibers is smaller, the specific surface area of the fibers is increased, and the waterproof performance is also increased.

Further, the membrane filter composed of the laminate of the nanofiber web and the porous support used as the second blocking member 112 may undergo a water repellent treatment and an oil-repelling treatment process so as to prevent the dust from sticking to it. That is, the water repellent agent may be coated on the surface of the fiber by coating the membrane filter with, for example, a fluorine-based water repellent solution by a transfer method and then aging at 100-120 ° C.

In this case, the thickness of the nanofiber web is set in the range of 1 to 5 mu m, and when the nanofiber web and the porous support are laminated, the total thickness may vary depending on the thickness of the porous support.

The air permeability of the membrane filter may be set in the range of 10 to 20 cfm.

For example, when a PVDF nanofiber web was not laminated on a 30 gsm low-temperature PET nonwoven fabric (Comparative Example 1), 1 gsm PVDF nanofiber web was laminated on a 30 gsm low-temperature PET nonwoven fabric (Comparative Example 2) (Comparative Example 3) in which PVDF nanofiber webs were laminated on a low temperature PET nonwoven fabric having a low temperature of 30 gsm (Comparative Example 3), PVDF (Gsm), thickness (占 퐉), air permeability (cfm), and pore size (占 퐉) of 2 gsm laminated nanofiber webs (Comparative Example 4) were measured and shown in Table 1 below.

Radiation condition Gross weight (gsm) Thickness (㎛) Air permeability (cfm) Pore size (탆) Remarks Comparative Example 1 Origin 30 120 650 Comparative Example 2
Cross-section radiation
31 121 20.7 Example 31 123 11.3 2.31 Water repellent treatment Comparative Example 3 33 77 16.4 Comparative Example 4 Double sided radiation 34 125 8.9

As shown in Table 1, it can be seen that the membrane filter of the present invention exhibits a high air permeability (cfm) of 11.3 even when the pore size is 2.31 (mu m).

Meanwhile, the cover plate 120 may serve as a blocking plate for preventing the air that has passed through the blocking member 110 from directly moving into the indoor space. That is, when the insect control net 100 capable of blocking fine dust according to the present invention is installed on a window frame or a door frame, the cover plate 120 is disposed on one side of the blocking member 110, It is possible to prevent the outside air passing through the room from being directly introduced into the indoor space. For this purpose, the cover plate 120 may be a plate-shaped member having a predetermined area, and may be disposed at a predetermined distance from one side of the blocking member 110.

At this time, the cover plate 120 may be made of a transparent material so that sunlight can be introduced into the room while blocking the outside air passing through the blocking member 110 from entering the room. For example, the cover plate 120 may be a known glass plate or an acrylic plate. In addition, the cover plate 120 may be either transparent, opaque or translucent.

3, the cover plate 120 is spaced apart from the blocking member 110 to be spaced apart from the cover plate 120 and has a predetermined volume between the cover plate 120 and the blocking member 110, A retention space 136 may be formed. Accordingly, the outside air, which is dusted with fine dust through the blocking member 110, can stay in the staying space 136 in a state where the air is prevented from being directly introduced into the room through the cover plate 120, Can be introduced into the room through an inlet (134) and an outlet (135) formed in the support frame (130).

The support frame 130 is disposed at the edge of the blocking member 110 and the cover plate 120 to support the edge of the blocking member 110 and the cover plate 120, Is spaced apart from the blocking member (110).

The support frame 130 may include a first frame 131 and a second frame 132 as a frame structure and the first frame 131 and the second frame 132 The spacers 133 may be disposed on the opposite surfaces of the spacer 133.

The space between the cover plate 120 and the blocking member 110 facing each other can constitute the retention space 136 having a predetermined volume in cooperation with the spacer 133, 110 may be restrained from moving through the cover plate 120 and may be retained in the stay space 136. [

In the present invention, the first frame 131, the second frame 132, the inner spacer 133a, and the outer spacer 133b may be a single member or a plurality of members connected to each other. The inner spacer 133a and the outer spacer 133b may be formed separately from the first frame 131 and the second frame 132. The first frame 131 and the second frame 132 may be formed separately from the first frame 131 and the second frame 132. However, The second electrode 132 may be formed integrally with the first electrode 132.

However, the shape of the support frame is not limited thereto, and may be changed into various shapes such as circular, arcuate, and polygonal shapes depending on the shape of the blocking member 110, It may be of any form if it is wrapped in its entirety.

The first frame 131 has a hollow portion 131a to which the cover plate 120 is attached and the second frame 132 has a hollow portion 132a to which the blocking member 110 is attached.

At this time, the support frame 130 serves to support the blocking member 110 and the cover plate 120, and also serves as a moving passage for discharging the air existing in the staying space 136 to the indoor side have.

Accordingly, the smart window 100 capable of blocking fine dust according to the present invention functions as a window for blocking the outside air from entering the room through the cover plate 120, Clean air existing in the stay space 136 may be introduced into the room.

For this, the spacers 133 may include an inner spacer 133a and an outer spacer 133b spaced apart from each other, and the inner spacer 133a may have a relatively smaller size than the outer spacer 133b And an outer spacer 133b may be disposed on the outer side of the inner spacer 133a. In addition, the inner spacer 133a and the outer spacer 133b may be disposed on opposite sides of the first frame 131 and the second frame 132 facing each other.

Accordingly, the space formed between the inner spacer 133a and the outer spacer 133b cooperates with the first frame 131 and the second frame 132 to form the left and right receiving spaces 137a and 137b having a predetermined volume ).

At least one inlet 134 having a predetermined area is formed in the inner spacer 133a so as to allow the staying space 136 and the accommodation spaces 137a and 137b to communicate with each other, 137a, and 137b may be formed through the first frame 131. In this case,

In this case, in the present invention, the outlet 135 may be formed as one opening having a predetermined area. However, as shown in FIG. 1, a plurality of slits may be formed at predetermined intervals As shown in FIG.

The smart window 100 according to the present invention is installed in the left and right accommodating spaces 137a and 137b located on the left and right sides of the retention space 136, And second blowers 140a and 140b.

Each of the first and second blowers 140a and 140b includes a cylindrical blowing fan 146 having a plurality of blades radially arranged from a center axis thereof and a motor 42 for rotating the blowing fan 46, And a case 144 surrounding the half of the blowers 140a and 140b in the longitudinal direction and supporting the blowing fan 146 in a rotatable manner.

At this time, on the left and right sides of the second frame 132, half of the exposed first and second blowers 140a and 140b are accommodated in the accommodating spaces 137a and 137b, And an arrangement hole 138 having an area of about 20 mm. Accordingly, the first and second blowers 140a and 140b are detachably coupled to the arrangement holes 138 of the second frame 132, so that external exposure is prevented through the separate case 144, A state in which a part of the first and second blowers 140a and 140b is disposed in the accommodation spaces 137a and 137b can be maintained.

Here, the first and second blowers 140a and 140b can rotate the blowing fan 146 through the driving of the motor 142, and the power supply of the motor 142 can be controlled by directly Or may be supplied through a separate battery (not shown) built into one side of the support frame 130.

Operation of the first and second blowers 140a and 140b will be described later with reference to FIGS. 8 and 9. FIG.

The present invention proactively controls the forced ventilation time and period for ventilating the outside air to the room by measuring the air pollution degree of the room, and by automatically cleaning the membrane filter periodically, the service life of the membrane filter is increased, Provides smart windows that can be supplied indoors.

The smart window according to the present invention has a control system as shown in Fig. 8, for example, the control system can be operated by a control program as shown in Fig.

8, the control system 170 includes a contamination level measuring sensor 172, a negative pressure measuring sensor 173, a light detecting sensor 174, an outside temperature sensor 175, A first shutter 150, a second shutter 150, a heater 121, and an alarm device 171 are connected to the output side of the first blower 140a, the second blower 140b, the second blower 140b, .

In addition, the control system 170 may include a remote control 180 for controlling the control system 170 remotely for the convenience of the user. In this case, the controller 171 may incorporate, for example, a receiver 171a for receiving ultrasonic waves according to the wireless communication system.

The controller 171 may include a microprocessor having a memory device having a built-in system control program for controlling the smart window control system 170, a microprocessor having a separate memory device, A programmable logic array, a microcontroller, a signal processor, or a combination comprising some or all of these.

The pollution degree measuring sensor 172 is installed in a room, for example, a through hole of the first frame 131, and is provided with a pollution degree measuring sensor 172 for detecting pollution such as carbon dioxide (CO ₂ ), volatile organic compounds (VOC) Measures the degree of pollution and outputs it as electric signal.

The negative pressure measurement sensor 173 measures the negative pressure applied to the retention space 136 in accordance with the porosity of the membrane filter included in the blocking member 110 when the blowers 140a and 140b are operated.

If dust, foreign matter, pollen or the like is adsorbed to the micro pores of the nanofiber web having fine pores and the micro pores of the second blocking member 112 having the porous support laminated thereon, the porosity of the filter becomes low and the negative pressure applied to the retention space 136 increases .

The light sensor 174 measures the brightness of the room as an illuminance sensor and obtains information for determining the daytime and the nighttime.

The outside temperature sensor 175 and the room temperature sensor 176 measure the temperature of the outside air and the inside of the room. When the outside temperature is lower than the set temperature set by the user, the outside air temperature sensor 175 and the room temperature sensor 176 heat the heater 121 Get information to get started. Also, in winter, condensation may occur in the cover plate 120, and the outside temperature may be appropriately used when determining whether to solve the condensation phenomenon by activating the heater 121.

The first blower 140a and the second blower 140b connected to the output side of the controller 171 are used for introducing outside air into the room. The first and second shutter devices 150, Is used to selectively block the inlet (135) communicating with the room when cleaning the washing tub (112).

Hereinafter, the first and second shutter apparatuses 150 will be described with reference to Figs. 6A and 6B.

The first and second shutter devices 150 are installed in the left and right receiving spaces 137a and 137b of the first frame 131 to selectively block the inlet 135 communicating with the room.

To this end, the first and second shutter apparatuses 150 include a rack 151 having a plurality of gears 151a formed on its front surface so as to be vertically movable up and down, a pinion 152 And a drive motor 153 for rotationally driving the pinion 152.

The rack 151 is provided with four guide channel forming portions 156 for forming two guide channels 156a on the upper and lower sides so as to be vertically movable up and down when the pinion 152 is driven by the pinion 152 And four guide pins 155 are coupled to the four guide channels 156a so as to be guided.

In the filter cleaning mode, the inlet 151 is blocked at the time of descending as shown in FIG. 5 and FIG. 6B, A rectangular space 157 is provided in the lower half portion and the inlet 135 is set to an open state when the rack 151 is lifted as shown in FIGS. 4 and 6A in the normal mode . As described above, the rack 151 functions as a movable shutter for opening and closing the inlet 135.

The control unit 171 applies a driving signal to the driving motor 153 of the first and second shutter apparatus 150 to apply a counterclockwise rotational force to the pinion 152 via the shaft 154 The rack 151 is lowered and the rack 151 is lifted by applying a driving signal to the driving motor 153 and applying a clockwise rotational force to the pinion 152 via the shaft 154. [

The guide channel forming portion 156 forming the guide channel 156a of the rack 151 may be omitted or modified to have a different structure as shown in FIG.

In the first and second shutter apparatus 150 shown in Figs. 6A and 6B, a gear 151a is formed on the upper side of the rack 151 and a space 157 is provided on the lower side of the rack 151 The same effect can be obtained when the space portion 157 is formed on the upper side and the gear 151a is formed on the lower side.

The first and second shutter devices may be configured in a different driving manner instead of the rack / pinion driving method.

Hereinafter, the first and second shutter apparatuses of the solenoid actuator driving type will be described with reference to FIGS. 7A and 7B.

The first and second shutter apparatuses 160 and 160 include a movable shutter 161 and a movable shutter 161. The movable shutter 161 is vertically movable up and down and has a space 162 at an upper portion or a lower portion thereof. And a solenoid 164 for raising and lowering the plunger 165.

Two guide pins 163 are coupled to the upper and lower sides of the movable shutter 161 so that the movable shutter 161 can be vertically moved up and down when the solenoid 164 is linearly driven.

In the solenoid actuator driving mode, when a driving signal is applied to the solenoid 164 from the control unit 171 in the filter cleaning mode, a magnetic field is generated as current flows through the inner coil to contract the plunger 165 into the solenoid 164 do. As a result, as shown in FIGS. 5 and 7A, the movable shutter 161 descends to block the inlet 135.

However, when the driving signal is not applied to the solenoid 164 in the normal mode, no current is generated in the inner coil and no magnetic field is generated. The plunger 165 is rotated by the restoring force of the return spring 166, And is exited to the outside. As a result, the movable shutter 161 moves up and down to open the inlet 135 as shown in Figs. 4 and 7B.

The first and second shutter devices 160 shown in Figs. 7A and 7B have the structure in which the movable shutter 161 is disposed on the upper side and the solenoid 164 for driving the movable shutter 161 is disposed on the lower side, And the solenoid 164 may be arranged on the upper side.

In the illustrated example, the movable shutter 161 having the shutter portion for blocking the inlet port 135 and the space portion 162 at the lower portion is provided at the upper portion. However, the space portion 162 is disposed at the upper portion, It is also possible that a shutter portion for blocking the inlet 135 is disposed.

Referring to FIGS. 2A and 8, the cover plate 120 is provided with a heater 121 to eliminate condensation. When the outside air temperature is lower than a set temperature set by the user, the cold outside air Heat exchange is carried out when staying in the stay space 136.

The heater 121 installed on the cover plate 120 may be formed of a metal thin film having a resistivity of 1 or more or a strip type surface heating element made of an amorphous strip obtained by slitting an amorphous ribbon and connected in series and / A heater assembly or hot wire may be used. As the strip type surface heat emission element, for example, an iron-based amorphous ribbon or FeCrAl may be used.

Hereinafter, the operation of the smart window according to the present invention will be described with reference to FIG.

The smart window according to the present invention can turn on the power switch 147 provided on the front surface of the first frame 131 to start the control system 170 to start the operation.

Or the power supply signal for driving the control system using the remote controller 180 may be wirelessly transmitted to start the control system 170 to start the operation.

In this case, the controller 171 first detects the illuminance of the room through the light sensor 174 (S11). When the illuminance value of the detected room exceeds the set illuminance reference value, it is determined that the illuminated state is in the daytime or indoors (S12).

In order to minimize the maintenance cost in the case where the user is not indoors, that is, when sleeping in the bedroom, or when going out or traveling, the operation of the smart window is stopped to detect the illuminance value of the room .

In addition, it is intended to determine efficiency of indoor air pollution during a period when the user is active in the indoor space, and to supply fresh air from the outside to the room to minimize the maintenance cost and to improve efficiency.

As a result of the determination in the step S12, if it is a daytime or when the indoor lighting is on, the pollution degree of the room is measured through the pollution degree measuring sensor 172 (S13).

The control unit 171 controls the motor 42 to operate the first and second blowers 140a and 140b in the case where the measured degree of contamination exceeds the reference value of the degree of contamination, (S15).

When the motor 42 is driven, the air in the receiving spaces 137a and 137b is discharged to the room through the outlet 135 while the blowing fan 146 is rotated as shown in FIGS. 4 and 6A, The negative pressure or the suction force is provided to the retention space 136 side through the inflow opening 134 communicated with the accommodation spaces 137a and 137b while the negative pressure or the suction force is generated in the spaces 137a and 137b, The air is introduced into the retention space 136 while the fine dust is removed by the suction force. Thereafter, the outside air flowing into the stay space 136 may be sequentially supplied to the indoor side through the inlet 134, the accommodating spaces 137a and 137b, and the outlet 135 in order.

When the first and second blowers 140a and 140b are operated, the controller 171 measures the temperatures of the outside air and the room through the outside air temperature sensor 175 and the room temperature sensor 176 (S16) First, it is determined whether the measured outside air temperature is lower than the set temperature set by the user (S17). If the outside air temperature is lower than the set temperature set by the user, the heater 121 is operated for heat exchange of the cold outside air (S18).

Also, the operation of the heater 121 may be set so as to proceed when the difference between the outside temperature and the room temperature is greater than a preset reference value.

In the present invention, in consideration of the occurrence of condensation on the cover plate 120 according to the outside temperature in winter, the outside air temperature sensor 175 and the outside air temperature sensor 175, regardless of whether the first and second blowers 140a and 140b are operated, It is also possible to operate the heater 121 for the purpose of detecting the condensation phenomenon and eliminating the condensation phenomenon by detecting the outside air and the indoor temperature measured from the indoor temperature sensor 176 and performing signal processing thereon.

On the other hand, when the illuminance value of the room detected in the step S12 does not exceed the illuminance reference value, it is determined that the illumination is turned off at night or indoors.

The control unit 171 detects that a negative pressure is applied to the staying space 136 which is the inside of the first and second blocking members 111 and 112 when the first and second blowers 140a and 140b are operated during the day, 173) (S21), and the measured negative pressure value is stored in the memory device.

If the negative pressure value stored in the memory device is compared with a predetermined reference value (S22), and if the measured negative pressure is larger than the reference value, dust, foreign matter, pollen, etc. are adsorbed and accumulated in the micro pores of the second blocking member 112, It is determined that the porosity of the filter is low and the filter cleaning mode is performed (S23).

In this case, the controller 171 rotates the pinion 152 counterclockwise by applying a driving signal to the driving motor 153 of the first and second shutter apparatus 150 to lower the rack 151 Leaving only a portion of the inlet 135 and blocking most of it. The fact that the rack 151 does not block part of the inlet port 135 causes a negative pressure to be applied to the receiving spaces 137a and 137b and the stay space 136 when operating the first and second blowers 140a and 140b It is to avoid.

When the first and second blowers 140a and 140b are operated in this state, the accommodation spaces 137a and 137b and the stay space 136 are separated from the room through a part of the inlet 135 as shown in Figs. 5 and 6B The pressurized air is applied to the first and second blocking members 111,

Particularly, when the first and second blowers 140a and 140b are operated, a shock wave is generated by applying a pulsed driving voltage so as to form a rhythm airflow by driving at a variable speed or intermittent driving, Driving the second blocking members 111 and 112 to apply an impact may increase the cleaning efficiency of the first and second blocking members 111 and 112.

The execution of the filter cleaning mode for the first and second blocking members 111 and 112 is performed in order to prevent the accumulation of dust and the like in the fine pores of the filter to prevent accumulation of fresh air in the room, Do. Therefore, the filter cleaning mode can be executed for a preset time every night every night.

However, the membrane filter composed of the nanofiber webs provided on the first and second blocking members 111 and 112 can reach the case where dust and the like are gradually accumulated in the fine pores of the filter when the use time is increased, .

In the present invention, if the number of times the filter cleaning mode is executed or the period of using the filter is exceeded, the user is notified via the alarm device 171 (S25).

The alarm device 171 may be driven by a light emitting diode (LED), or may generate an alarm sound. In this case, the user may use dust or the like accumulated in the fine pores of the second blocking members 111 and 112 by using an appropriate cleaning agent and reuse them or replace them with a new filter.

Meanwhile, in the smart window, if the controller 171 determines the illuminance value of the room detected from the light sensor 174 at a predetermined time of the night, which is preset every day, it can be determined that the user empties the house for a long period of time. Can be set to the sleep mode, and the operation can be stopped. In this case, for example, when the user presses the reset button of the remote controller 180, the system startup can be set.

Although the blower 140a and 140b are described as being coupled to the support frame 130 through the arrangement hole 138 in the embodiment of the present invention as described above, The present invention is not limited thereto, and various known methods can be applied and can be appropriately changed according to the design structure. However, the blowers 140a and 140b may be provided on the sides of the accommodating spaces 137a and 137b to provide a suction force upon driving.

In addition, although the blowing fan 146 that rotates through the driving of the motor 142 in the forced convection mode is exemplified, the present invention is not limited thereto, and a suction method using a known air suction device (not shown) may be applied.

In the above description of the embodiment, when the indoor illuminance is higher than the illumination reference value and the indoor air pollution level exceeds the reference value, the blowers 140a and 140b are driven to suck the outside air into the room However, when the indoor illuminance is lower than the illuminance reference value, that is, when the indoor air pollution degree exceeds the reference value even at night, the blowers 140a and 140b may be driven to suck the outside air into the room.

The smart window 100 capable of blocking the fine dust described above can be installed in a door frame or a window frame to replace a conventional window or door, and can be installed to be slidably movable on the door frame or window frame. Accordingly, when the filter replacement or cleaning of the insect control net according to the present invention is required, the user can directly remove or replace the filter from the door frame or the window frame in the same manner as in the conventional method, thereby improving the ease of use.

10, the smart window of the present invention includes a pair of window units 100a and 100b slidably installed in a window frame 11 fixed to a wall (not shown) Can be used.

In the system window 1 of the present invention constructed as described above, compulsory ventilation is performed by using a membrane filter provided in the insecting net in a forced evacuation mode in a state in which the gas generators 100a and 100b are not opened normally, The shim units 100a and 100b can be pivotally or slidly opened or closed in the vertical or horizontal direction.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Will be clear to those who have knowledge of.

The present invention relates to a smart window having an insect control function that increases the ventilation amount while employing a membrane filter capable of blocking ultrafine dust or the like of not more than PM 2.5. The present invention relates to a smart window having a membrane structure, In addition, it can be applied to a system window or a single window which is capable of blocking waterproof, insect repellent, antifouling, deodorization, and pathogens without having a separate system window.

1: System window 11: Window frame
100: Smart window 100a, 100b:
110: blocking member 111: first blocking member
111a: through hole 112: second blocking member
112a: nanofiber 112b: fine pores
120: cover plate 121: heater
130: support frame 131: first frame
131a, 132a: hollow portion 132: second frame
133: Spacer 133a: Inner spacer
133b: outer spacer 134: inlet
135: Outlet 136: Retention space
137a, 137b: accommodation space 138: placement hole
140a, 140b: blower 142: motor
144: case 146: blowing fan
147: Power switch 150, 160:
151: rack 152: pinion
153: drive motor 154:
155, 163: guide pin 156: guide channel forming part
157, 162: Space section 161:
164: Solenoid 165: Plunger
170: control system 171:
172: Pollution degree measuring sensor 173: Negative pressure measuring sensor
174: Light sensor 175: Outside temperature sensor
176: indoor temperature sensor 180: remote control

Claims (21)

A blocking member provided with a membrane filter and blocking passage of fine dust from outside air;
A cover plate spaced apart from the blocking member such that a retention space in which the air passing through the blocking member stays can be formed;
The air conditioner according to any one of claims 1 to 3, further comprising: a penetrating portion provided at a center thereof for supporting the blocking member and the cover plate on the outer side and the inner side of the penetrating portion, ; And
And a blower installed in the accommodation space and generating a suction force for discharging the outside air to the outflow port through the stay space and the accommodation space after the outside air is sucked into the shutoff member. The method according to claim 1,
And a smart window for driving the blower when the air pollution degree of the room exceeds a reference value. The method according to claim 1,
Wherein the blower is driven when the illuminance of the room exceeds a reference value. The method according to claim 1,
Wherein when the negative pressure applied to the blocking member when the blower is driven exceeds a reference value, self-cleaning of the blocking member is performed. 5. The method of claim 4,
Further comprising a shutter device for partially blocking said outlet at the time of self-cleaning of said blocking member,
The self-cleaning of the blocking member may be performed by a smart window that generates an air flow back to the blocking member through the accommodation space and the stay space through the outlet, as the blower is driven in a state where the outlet is partially blocked by the shutter device . 6. The method of claim 5,
Wherein the blower is driven at a variable speed or when a pulsed driving voltage is applied to generate a shock wave current to apply a shock to the blocking member. 6. The method of claim 5,
The shutter device
A movable shutter which blocks or opens the outlet in accordance with the upward / downward movement; And
And a driving member for moving the movable shutter upward and downward. 8. The method of claim 7,
Wherein the driving member is a solenoid actuator. 8. The method of claim 7,
The driving member
A rack having a plurality of gears formed on a back surface of the movable shutter; And
And a pinion gear-coupled to the rack to move the rack up and down. The method according to claim 1,
The support frame includes:
A first frame disposed on the side of the room and having a penetration portion to which a cover plate is coupled at a center,
A second frame disposed on the outdoor side and having a penetration portion to which a blocking member is coupled at a center, the second frame being opposed to the first frame;
An inner spacer interposed between the first frame and the second frame, the inner spacer having an inlet communicating the retention space and the accommodation space; And
And an outer spacer spaced apart from the inner spacer by a predetermined distance to define the accommodation space. The method according to claim 1,
The blocking member
A first blocking member for blocking inflow of insects or pests; And
And a second blocking member attached to the first blocking member to block fine dust from the outside air. 12. The method of claim 11,
Wherein the second blocking member is a membrane filter for filtering ultrafine dust less than PM2.5. 13. The method of claim 12,
The membrane filter
Nanofiber webs having three-dimensional micropores integrated by nanofibers; And
And a porous support, wherein the nanofiber web is laminated on one side or both sides and supports a nanofiber web. 13. The method of claim 12,
Wherein the membrane filter is a smart window having a nanofiber web thickness of 1 to 5 μm and an air permeability of 10 to 20 cfm. The method according to claim 1,
And a heater installed on the cover plate to perform heat exchange of the cool outside air when the outside air temperature is lower than the set temperature set by the user or when the temperature difference between the outside temperature and the room temperature is larger than the set value. 16. The method of claim 15,
Wherein the heater is a metal thin film having a specific resistance of 1 or more or a strip type surface heating element made of a strip of amorphous ribbon. Determining a daytime and a nighttime based on the detected indoor illumination value;
Measuring indoor pollution degree in case of a week, and judging whether the measured pollution degree exceeds a pollution level reference value; And
And driving the blower to discharge the filtered air having passed through the blocking member to the room through the outlet when the measured degree of contamination exceeds the reference value of the pollution degree. 18. The method of claim 17,
Measuring a negative pressure applied to the blocking member and determining whether the negative pressure exceeds a negative pressure reference value; And
And driving the blower to shut off the blocking member when the measured negative pressure exceeds the negative pressure reference value, driving the shutter unit to leave only a part of the outlet, and cleaning the blocking member. 19. The method of claim 18,
Wherein the driving of the blower is driven at a variable speed to form a rhythm stream to apply an impact to the blocking member. 19. The method of claim 18,
Wherein the blower is driven by applying a pulsed driving voltage to generate a shock wave current to apply an impact to the blocking member. 18. The method of claim 17,
Driving the heater installed on the cover plate when the outside air temperature is lower than the set temperature set by the user or when the temperature difference between the outside temperature and the room temperature is larger than the set value when driving the blower, .

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