KR102593516B1 - Ventilation module using photocatalyst for antibacteria and deodorization - Google Patents

Abstract

A ventilation module with antibacterial and deodorizing functions using a photocatalyst is provided. The ventilation module includes a photocatalyst filter unit installed inside the module to adsorb contaminants in the interior air and interior air, a light source unit that irradiates light directly to the photocatalyst filter unit, an exhaust unit that discharges interior air, and an exhaust unit that introduces exterior air. A ventilation module with improved sterilization and deodorization effects of incoming external air can be formed, including a control unit that controls the opening and closing of the intake unit, exhaust unit, and intake unit.

Description

Ventilation module with antibacterial and deodorizing functions using photocatalyst {VENTILATION MODULE USING PHOTOCATALYST FOR ANTIBACTERIA AND DEODORIZATION}

This application relates to a ventilation module with antibacterial and deodorizing functions using a photocatalyst. More specifically, the ventilation module with antibacterial and deodorizing functions is provided by placing a photocatalytic ceramic filter formed by coating a photocatalyst solution on a ceramic material inside the ventilation module. It's related.

In general, a ventilation system is an essential system for the daily lives of modern people living in limited spaces as it discharges stale indoor air to the outside and supplies clean outdoor air to the indoors. The carbon dioxide content of the air in a closed space increases over time due to the respiration of living things, which interferes with the breathing of living things, and if the level is excessive, it threatens health or even life. Therefore, when many people stay in a small space such as an office or restaurant, polluted indoor air must be replaced with fresh outdoor air from time to time.

However, air exchange through a simple ventilation system cannot prevent the inflow of external pollutants, so if the ventilation system does not include a filter to filter outdoor air, polluted outdoor air can be introduced without filtration. As a result, indoor air quality could not be improved.

Due to the increasingly serious air pollution problem, various types of filters used inside these ventilation systems have been developed and are continuously evolving. However, in the case of general filters, sterilizing power cannot be expected as they only filter relatively large particles such as dust, and cannot be expected to have sterilizing power for a certain period of time. After use, there was a problem that the dust collection ability deteriorated and had to be replaced periodically.

To solve this problem, this application applies a photocatalyst to the filter that oxidizes and reduces surrounding chemicals (pollutants) in the process of converting light energy into chemical energy inside the ventilation module, and has excellent antibacterial and deodorizing effects and can be used semi-permanently. In addition, we intend to disclose a filter with improved filtration efficiency.

The technical problem that this application seeks to solve is to provide a ventilation module with improved sterilization and deodorization effects of external air introduced during ventilation.

Another technical problem that this application seeks to solve is to provide a ventilation module that decomposes pollutants introduced from external air into components that are harmless to the human body.

Another technical problem that this application seeks to solve is to provide a ventilation module capable of shortening ventilation time.

Another technical problem that this application seeks to solve is to provide a ventilation module in which light emitted from the light source unit can be evenly irradiated to the photocatalyst.

Another technical problem that this application seeks to solve is to provide a ventilation module with a heat dissipation effect.

Another technical problem that this application seeks to solve is to provide a ventilation module that can prevent dust from accumulating in the light source unit.

Another technical problem that this application seeks to solve is to provide a ventilation module that selectively and automatically controls ventilation in a desired indoor space.

The technical problems that this application seeks to solve are not limited to those described above.

In order to solve the above technical problems, this application provides a ventilation module with antibacterial and deodorizing functions using a photocatalyst.

According to one embodiment, a ventilation module with antibacterial and deodorizing functions using a photocatalyst includes a case consisting of a heat exchange element installed in the center of the interior and a support plate installed diagonally at the interior corners, and a first module that absorbs pollutants in the interior air (IA). A photocatalyst filter unit installed on the outer surface of the heat exchange element, including a photocatalyst filter unit and a second photocatalyst filter unit that adsorbs contaminants from external air (OA), and a light source unit installed on the support plate to directly irradiate light to the photocatalyst filter unit. , select an indoor space (Rn) to suck in the interior air (IA) through the first manifold with a plurality of exhaust holes, and drive the first constant air volume BLDC motor to suck the interior air (IA) through the first intake pipe. After sucking in the outside air (OA) through the heat exchange element and then driving the exhaust unit and the second constant air volume BLDC motor to discharge the air into the first discharge pipe through the heat exchange element, the outside air (OA) is sucked in through the second suction pipe and then into the first discharge pipe through the heat exchange element. 2 An intake unit that introduces the outside air (OA) transferred to the discharge pipe into the selected indoor space (Rn) through a second manifold having a plurality of intake holes, and opening and closing of the plurality of exhaust holes and the plurality of intake holes. It includes a control unit that controls, wherein the first photocatalyst filter unit is formed by stacking a first photocatalyst ceramic filter, a second pre-filter, and a tertiary HEPA filter on the side where the internal air (IA) enters, and the second photocatalyst filter unit is A primary pre-filter and a secondary HEPA filter are laminated on the side through which external air (OA) enters, and a tertiary photocatalytic ceramic filter is laminated on the side through which external air (OA) enters. The primary photocatalytic ceramic filter And the tertiary photocatalyst ceramic filter is formed by coating a photocatalyst solution on a ceramic material, and the photocatalyst of the first photocatalyst ceramic filter and the tertiary photocatalyst ceramic filter generates electrons (e-) and holes (e-) when light from the light source is irradiated. h+) is generated, and electrons (e-) and holes (h+) react with oxygen (O2) and moisture (H2O) in the atmosphere to become anions (O2-) and hydroxy radicals (-OH), and anions (O2 -) and hydroxy radical (-OH) active oxygen can decompose harmful substances and convert them into moisture and carbon dioxide after coming into contact with them.

According to one embodiment, the photocatalyst may be either TiO2 or Pt-WO3.

According to one embodiment, the light source unit includes a plurality of light sources, and when the photocatalyst is TiO2, the light source irradiates ultraviolet rays to the photocatalyst filter unit, and when the photocatalyst is Pt-WO3, the light source radiates ultraviolet rays to the photocatalyst filter unit. Visible light can be irradiated to the filter part.

According to one embodiment, the plurality of exhaust holes include an exhaust damper formed in the form of an opening and closing plate therein, the plurality of intake holes include an intake damper formed in the shape of an opening and closing plate therein, and the control unit controls the exhaust damper. The inside air (IA) can be selectively discharged by automatically opening and closing, and the intake damper can be automatically opened and closed to selectively introduce outside air (OA).

According to an embodiment of the present application, a case consisting of a heat exchange element installed in the inner center and a support plate installed diagonally at the inner corner, a first photocatalytic filter unit that absorbs contaminants in the internal air (IA), and an external air (OA) A photocatalyst filter unit installed on the outer surface of the heat exchange element, including a second photocatalyst filter unit that adsorbs pollutants, a light source unit installed on the support plate to directly irradiate light to the photocatalyst filter unit, and a first manifold having a plurality of exhaust holes. Select the indoor space (Rn) to suck in the interior air (IA) through the fold, drive the first constant air volume BLDC motor, suck the interior air (IA) through the first suction pipe, and then through the heat exchange element. The exhaust unit discharges to the first discharge pipe, and the second constant air volume BLDC motor is driven to suck in outside air (OA) through the second suction pipe, and then the outside air (OA) is transferred to the second discharge pipe through the heat exchange element. An intake unit that introduces air into the selected indoor space (Rn) through a second manifold having a plurality of intake holes, and a control unit that controls opening and closing of the plurality of exhaust holes and the plurality of intake holes, wherein the first The photocatalytic filter unit is formed by stacking a first photocatalytic ceramic filter, a secondary pre-filter, and a tertiary HEPA filter on the side where internal air (IA) enters, and the second photocatalytic filter unit is formed on the side where external air (OA) enters. A primary pre-filter and a secondary HEPA filter are stacked, and a tertiary photocatalytic ceramic filter is stacked on the side through which external air (OA) enters, and the primary photocatalytic ceramic filter and the tertiary photocatalytic ceramic filter are made of a ceramic material. It is formed by coating a photocatalyst solution, and the photocatalysts of the first photocatalyst ceramic filter and the third photocatalyst ceramic filter generate electrons (e-) and holes (h+) when light from the light source is irradiated, and electrons (e- ) and holes (h+) react with oxygen (O2) and moisture (H2O) in the atmosphere to become anions (O2-) and hydroxy radicals (-OH), and anions (O2-) and hydroxy radicals (-OH) The active oxygen can provide a ventilation module with antibacterial and deodorizing functions using a photocatalyst that decomposes harmful substances after contact with them and converts them into moisture and carbon dioxide.

Accordingly, pollutants introduced from the outside air can be decomposed into components that are harmless to the human body.

The light source unit includes a plurality of light sources, and when the coated photocatalyst is TiO2, the light source directly irradiates ultraviolet rays to the photocatalyst filter unit, and when the coated photocatalyst is Pt-WO3, the light source directly irradiates ultraviolet rays to the photocatalyst filter unit. It is possible to provide a ventilation module with antibacterial and deodorizing functions using a photocatalyst that directly irradiates visible light to the area.

Accordingly, the light source unit that activates the photocatalyst is placed close to the photocatalyst filter unit, so that photocatalyst efficiency can be improved.

In addition, the plurality of exhaust holes include an exhaust damper formed in the form of an opening and closing plate inside, and the plurality of intake holes include an intake damper formed in the shape of an opening and closing plate inside, and the exhaust damper is automatically opened and closed to selectively A ventilation module with antibacterial and deodorizing functions using a photocatalyst including the control unit that exhausts air (IA) and automatically opens and closes the intake damper to selectively introduce outside air (OA) can be provided.

Accordingly, the desired indoor space can be selectively ventilated through a control unit that automatically opens and closes the exhaust damper and intake damper.

1 is a diagram for explaining a photocatalytic filter unit formed inside a ventilation module according to an embodiment of the present application.
Figure 2 is an internal cross-sectional view showing a photocatalytic ceramic filter laminated in a ventilation module according to an embodiment of the present application.
Figure 3 is a diagram for explaining the mechanism by which a photocatalyst reacts in a ventilation module according to an embodiment of the present application.
Figure 4 is a diagram for explaining the mechanism by which a pollutant is attached to and removed from a photocatalyst irradiated with light inside a ventilation module according to an embodiment of the present application.
Figure 5 is a diagram to explain the photocatalyst reaction mechanism when the photocatalyst is TiO2 and when the photocatalyst is Pt-WO3 according to an embodiment of the present application.
Figure 6 is an internal perspective view showing that the light source directly radiates light to the photocatalytic ceramic filter inside the ventilation module according to an embodiment of the present application.
Figure 7 is a perspective view of the light source unit within the ventilation module according to the first modified example of the embodiment of the present application.
Figure 8 is a perspective view of the light source unit within the ventilation module according to the second modified example of the embodiment of the present application.
Figure 9 is a perspective view of a light source unit within a ventilation module according to a third modified example of the embodiment of the present application.
Figure 10 is an internal cross-sectional view showing the process of air transfer and heat exchange during the exhaust operation of the ventilation module according to an embodiment of the present application.
Figure 11 is an internal cross-sectional view showing the process of air transfer and heat exchange during the intake operation of the ventilation module according to an embodiment of the present application.
Figure 12 is a conceptual diagram showing that the manifold and the control unit of the ventilation module according to the embodiment of the present application are electrically connected.
Figure 13 is a diagram for explaining the damper blade of the exhaust damper included in the ventilation module according to the fourth modified example of the present invention.
Figure 14 is a diagram for explaining the ventilation operation through the exhaust damper included in the ventilation module according to the fourth modified example of the present invention.
Figure 15 is a diagram for explaining the damper blade of the exhaust damper included in the ventilation module according to the fifth modified example of the present invention.
Figure 16 is a diagram for explaining a method of using a ventilation module in winter according to a fifth modified example of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, the technical idea of the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and so that the spirit of the invention can be sufficiently conveyed to those skilled in the art.

Additionally, in various embodiments of the present specification, terms such as first, second, and third are used to describe various components, but these components should not be limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, what is referred to as a first component in one embodiment may be referred to as a second component in another embodiment. Each embodiment described and illustrated herein also includes its complementary embodiment. Additionally, in this specification, 'and/or' is used to mean including at least one of the components listed before and after.

In the specification, singular expressions include plural expressions unless the context clearly dictates otherwise. In addition, terms such as "include" or "have" are intended to designate the presence of features, numbers, steps, components, or a combination thereof described in the specification, but are not intended to indicate the presence of one or more other features, numbers, steps, or components. It should not be understood as excluding the possibility of the presence or addition of elements or combinations thereof. Additionally, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

1 is a diagram for explaining a photocatalytic filter unit formed inside a ventilation module according to an embodiment of the present application.

Referring to FIG. 1, the ventilation module according to the embodiment includes a case 100 formed to allow air transfer and heat exchange within the case, a photocatalytic filter unit 200 located inside the case 100, and a light source unit 300. , an exhaust unit 400 that discharges internal air (IA) to the outside, an intake unit 500 that introduces external air (OA) into the interior, and control opening and closing of the exhaust unit 400 and the intake unit 500. It may include a control unit 600 that does.

The case 100 may include a heat exchange element 110 installed at the inner center of the case 100 and a support plate 120 installed at an inner corner.

The heat exchange element 110 is a device where the inside air (IA) and the outside air (OA) meet so that the temperature change in the room can be minimized even if the inside air (IA) flows out to the outside or the outside air (OA) flows inside. It may be installed inside the case 100.

The support plate 120 may be installed diagonally at the inner corner of the case 100 so that the light source unit 300, which will be described later, can be attached.

Figure 2 is an internal cross-sectional view showing a photocatalytic ceramic filter laminated in a ventilation module according to an embodiment of the present application.

Referring to FIG. 2, the photocatalyst filter unit 200 is installed on the outer surface of the heat exchange element 110, and the first photocatalyst filter unit 210 adsorbs contaminants in the internal air (IA) and external air (OA). It may include a second photocatalyst filter unit 220 that adsorbs pollutants.

The first photocatalytic filter unit 210 may be formed by stacking a primary photocatalytic ceramic filter 211, a secondary pre-filter 212, and a tertiary HEPA filter 213 on the side of the heat exchange element 110. .

The primary photocatalytic ceramic filter 211 may be stacked on the top of the outer surface of the heat exchange element 110 where the internal air (IA) enters.

The secondary pre-filter 212 may be stacked on the bottom of the primary photocatalytic ceramic filter 211.

The tertiary HEPA filter 213 is stacked on the bottom of the secondary pre-filter 212, and finally, the first photocatalytic filter unit 210 may include a three-stage filter structure.

The second photocatalytic filter unit 220 may be formed by stacking a primary pre-filter 221, a secondary HEPA filter 222, and a tertiary photocatalytic ceramic filter 223 on the other side of the heat exchange element 110. .

The first pre-filter 221 may be stacked on the other side of the heat exchange element 110 where external air (OA) enters.

The secondary HEPA filter 222 may be stacked on the bottom of the primary pre-filter 221.

The tertiary photocatalytic ceramic filter 223 may be stacked on another side of the heat exchange element 110 through which external air (OA) enters.

Figure 3 is a diagram for explaining the mechanism by which a photocatalyst reacts in a ventilation module according to an embodiment of the present application.

Referring to FIG. 3, the photocatalyst filter unit 200 may be formed by coating a photocatalyst solution on a ceramic material.

The photocatalyst can remove harmful substances such as VOCs (volatile organic compounds), nitrogen oxides (NOx), sulfur oxides (Sox), and formaldehyde in the air, and can serve to decompose bad odors. In addition, the photocatalyst has antiviral and sterilizing effects against viruses and bacteria, and can serve to remove organic substances such as cigarette smoke and oil residues attached to the surface of the photocatalyst, and the photocatalyst absorbs water when exposed to light. It has attractive properties (hydrophilicity) and may have a self-cleaning effect.

The photocatalyst may be either TiO2 (Titanium Dioxide) or Pt-WO3.

Figure 4 is a diagram for explaining the mechanism by which a pollutant is attached to and removed from a photocatalyst irradiated with light inside a ventilation module according to an embodiment of the present application.

Referring to Figure 4a, when light is irradiated to the photocatalyst, electrons (e-) and holes (h+) can be generated inside the photocatalyst.

Referring to Figure 4b, electrons (e-) generated inside the photocatalyst react with oxygen (O2) in the atmosphere to generate anions (O2-) (reduction reaction), and holes (h+) are generated by moisture (H2O) in the atmosphere. Hydroxy radicals (-OH) may be generated (oxidation reaction) by reacting with .

Referring to Figure 4c, the active oxygen of anions (O2-) and hydroxy radicals (-OH) generated inside the photocatalyst are VOCs (volatile organic compounds), nitrogen oxides (NOx) in the air, sulfur oxides (Sox), and form. It may react upon contact with harmful substances such as aldehydes.

Referring to FIG. 4D, harmful substances can be decomposed and converted into moisture (H2O) or carbon dioxide (CO2).

Figure 5 is a diagram to explain the photocatalyst reaction mechanism when the photocatalyst is TiO2 and when the photocatalyst is Pt-WO3 according to an embodiment of the present application.

Referring to FIG. 5A, the photocatalyst may be TiO2, and the photocatalyst filter unit 200 may be formed by coating a TiO2 solution on a ceramic material.

The TiO2 solution uses TiO2 with a specific surface area of 300 m2/g or more and can be prepared by a hydrothermal synthesis method. A TiO2 filter can be formed by coating a ceramic material with the TiO2 solution prepared by the above method. In addition, the TiO2 filter formed by the above method has the characteristics of being easy to mass produce due to no difficulty in handling, having high gas removal efficiency, being usable semi-permanently, and having high activity in the ultraviolet wavelength of 355 to 385 nm.

Referring to Figure 5b, the photocatalyst may be Pt-WO3, and the photocatalyst filter unit 200 may be formed by coating a Pt-WO3 solution on a ceramic material.

The Pt-WO3 solution uses Pt-WO3 with a specific surface area of 50 m2/g or more and can be prepared by an oxidation/reduction method. A Pt-WO3 filter can be formed by coating a ceramic material with the Pt-WO3 solution prepared by the above method. In addition, the Pt-WO3 filter formed by the above method has the characteristics of low manufacturing cost, high gas removal efficiency, semi-permanent use and regeneration, and high activity in the visible light wavelength of 400 to 600 nm.

The first photocatalyst ceramic filter 211 and the third photocatalyst ceramic filter 223 may be formed by coating a ceramic material with a TiO2 solution or a Pt-WO3 solution.

Figure 6 is an internal perspective view showing that the light source directly radiates light to the photocatalytic ceramic filter inside the ventilation module according to an embodiment of the present application.

Referring to FIG. 6, the light source unit 300 includes a plurality of light sources 300', and is installed close to the support plate 120 to directly irradiate light to the photocatalytic filter unit 200. The light emitted from the light source unit 300 may be ultraviolet (UV) or visible light, and the plurality of light sources 300' may be lamps or LEDs.

The light source unit 300 may irradiate light to the first photocatalyst ceramic filter 211 and the third photocatalyst ceramic filter 223 stacked on the top of the heat exchange element 110.

Figure 7 is a perspective view of the light source unit within the ventilation module according to the first modified example of the embodiment of the present application.

Referring to FIG. 7, the light source unit 300 may additionally include a first base 301.

The first base 301 is attached to the support plate 120, and the first base 301 includes a flat central portion 301a, a first inclined portion 301b on one side of the central portion, and a second inclined portion 301b on the other side of the central portion. It may include an inclined portion 301c. The thickness of the first base 301 may decrease as it moves from the central portion 301a to the first inclined portion 301b, and as it moves from the central portion 301a to the second inclined portion 301c, the thickness of the first base 301 may decrease. The thickness of the base 301 may be reduced. Because of this, the upper surface of the first inclined portion 301b and the upper surface of the second inclined portion 301c may be inclined with respect to the upper surface of the support plate 120.

The plurality of light sources 300' are disposed on the first inclined portion 301b and the second inclined portion 301c, and the inclined angle of the upper surface of the first inclined portion 301b and the second inclined portion ( 301c) Light emitted from the plurality of light sources 300' may be tilted and irradiated according to the tilt angle of the upper surface.

In conclusion, as the irradiation range of light emitted from the light source unit 300 increases, the photocatalyst of the photocatalyst filter unit 200 becomes more activated, thereby improving photocatalytic efficiency.

Figure 8 is a perspective view of the light source unit within the ventilation module according to the second modified example of the embodiment of the present application.

Referring to FIG. 8, the light source unit 300 may further include a second base 302 having a curved shape.

The second base 302 is attached to the support plate 120, and the second base 302 includes a flat central portion 302a, a first inclined portion 302b on one side of the central portion, and a second inclined portion on the other side of the central portion. It may include a portion 302c and a concave portion 302d that is concavely formed in the direction in which it is attached to the support plate 120. Due to this, the upper surface of the first inclined portion 302b and the upper surface of the second inclined portion 302c may be inclined with respect to the upper surface of the support plate 120, and the support plate 120 and the second base ( An empty space may be included between the concave portions 302d of 302).

The plurality of light sources 300' may be disposed on the first inclined portion 302b and the second inclined portion 302c.

The light emitted from the plurality of light sources 300' may be tilted and irradiated according to the inclined angle of the upper surface of the first inclined portion 302b and the inclined angle of the upper surface of the second inclined portion 302c, An empty space is formed between the support plate 120 and the concave portion 302d of the second base 302, and the air inside the empty space absorbs the heat emitted from the plurality of light sources 300', and then heats up. The absorbed air may be released to the outside.

In conclusion, as the irradiation range of the light emitted from the light source unit 300 is expanded, the photocatalyst of the photocatalyst filter unit 200 is more activated and photocatalytic efficiency can be improved, and the light emitted from the plurality of light sources 300' can be improved. A heat dissipation effect can be obtained by absorbing and dissipating heat in the empty space formed at the bottom of the concave portion 302d of the second base 302.

Figure 9 is a perspective view of a light source unit within a ventilation module according to a third modified example of the embodiment of the present application.

Referring to FIG. 9, the light source unit 300 may additionally include a third base 303.

The third base 303 is attached to the support plate 120, and the third base 303 has a ceiling surface 303a formed on one side in the ceiling direction and a floor surface formed on one side in the floor direction so that dust can flow down ( 303b) and an inclined surface 303c connecting the ceiling surface 303a and the floor surface 303b. The thickness of the third base 303 becomes thinner from the top to the bottom in the direction of the ceiling, and the inclination can be adjusted according to the ratio of the width of the ceiling surface 303a and the width of the floor surface 303b. Because of this, the upper surface of the inclined surface 303c may be inclined with respect to the upper surface of the support plate 120 by the adjusted inclination.

The plurality of light sources 300' are disposed on the inclined surface 303c, and can cause dust accumulated on the plurality of light sources 300' to fall according to the adjusted angle of the inclined surface 303c.

In conclusion, by adjusting the inclination angle of the inclined surface 303c on which the light source unit 300 is disposed, dust accumulated on the plurality of light sources 300' can be dropped, thereby preventing a decrease in photocatalytic efficiency.

Figure 10 is an internal cross-sectional view showing the process of air transfer and heat exchange during the exhaust operation of the ventilation module according to an embodiment of the present application.

Referring to FIG. 10, the exhaust unit 400 includes a first manifold 410, a first constant air volume BLDC motor 420, and a first suction pipe 430 to selectively discharge internal air (IA) to the outside. ) and a first discharge pipe 440.

The first manifold 410 is formed in a structure having a plurality of branch openings, a plurality of exhaust holes 411 formed at the ends of each branch opening, and a plurality of exhaust dampers 412 formed inside the exhaust holes 411. ) may include.

A plurality of exhaust holes 411 are formed at the ends of the branch ports of the first manifold 210 and are connected to each indoor space (Rn), where the indoor space (Rn) refers to a part or portion of the room to be ventilated. It includes the entire room, and may include, for example, room 1 (R1), room 2 (R2), living room (R3), bathroom (R4), etc.

The exhaust damper 412 is formed in the form of an opening/closing plate inside the exhaust hole 411 to select the indoor space (Rn) from which the internal air (IA) is to be sucked in, and is automatically operated by the control unit 600 to be described later. Opening and closing can be controlled.

The first constant air volume BLDC motor 420 sucks the internal air (IA) of the indoor space (Rn) using the suction power of the motor, and generates static pressure (when fluid is flowing in the pipe) inside the exhaust unit 400. Even if the rotation speed of the motor is reduced due to pressure acting in a direction perpendicular to the flow, the time required for ventilation can be shortened by correcting for the reduced rotation speed.

The first suction pipe 430 is connected to the other end of the first manifold 410 to transfer the internal air (IA) sucked by the first constant air volume BLDC motor 420 to the heat transfer element 410. You can.

The first discharge pipe 440 extends toward the heat transfer element 110 to discharge the internal air (IA) that has passed through the heat transfer element 110 to the outdoors.

Figure 11 is an internal cross-sectional view showing the process of air transfer and heat exchange during the intake operation of the ventilation module according to an embodiment of the present application.

Referring to FIG. 11, the intake unit 500 includes a second manifold 510, a second constant air volume BLDC motor 520, and a second suction pipe 530 to selectively introduce external air (OA) into the interior. ) and a second discharge pipe 540.

The second manifold 510 is formed in a structure having a plurality of branch openings, a plurality of intake holes 511 formed at the ends of each branch opening, and a plurality of intake dampers 512 formed inside the intake holes 511. ) may include.

A plurality of intake holes 511 are formed at the ends of the branch ports of the second manifold 510 and are connected to each indoor space Rn. The indoor space (Rn) includes part or all of the room to be ventilated, and may include, for example, room 1 (R1), room 2 (R2), living room (R3), bathroom (R4), etc. there is.

The intake damper 512 is formed in the form of an opening and closing plate inside the intake hole 511 to select an indoor space (Rn) into which external air (OA) will be introduced, and is automatically opened and closed by the control unit 600, which will be described later. Opening and closing can be controlled.

Figure 8 is an internal cross-sectional view showing the process of air transfer and heat exchange during the intake operation of the ventilation module according to an embodiment of the present application.

Referring to FIG. 8, the second constant air volume BLDC motor 520 sucks in outdoor air (OA) using the suction power of the motor, and creates a static pressure (fluid flows in the pipe) inside the intake unit 500. Even if the rotation speed of the motor is reduced due to pressure acting in a direction perpendicular to the flow, the time required for ventilation can be shortened by correcting for the reduced rotation speed.

The second suction pipe 530 extends from the outdoors and can transfer the outside air (OA) sucked by the second constant air volume BLDC motor 520 to the heat transfer element 110.

The second discharge pipe 540 may introduce outside air (OA) that has passed through the heat transfer element 110 into the indoor space (Rn) through the second manifold (510).

Figure 12 is a conceptual diagram showing that the manifold and the control unit of the ventilation module according to the embodiment of the present application are electrically connected.

Referring to FIG. 12, the control unit 600 automatically opens and closes the exhaust damper 412 to selectively discharge internal air (IA), and automatically opens and closes the intake damper 512 to selectively exhaust external air (OA). It can be brought in.

Figure 13 is a diagram for explaining the damper blade of the exhaust damper included in the ventilation module according to the fourth modified example of the present invention, and Figure 14 is a diagram for explaining the damper blade through the exhaust damper included in the ventilation module according to the fourth modified example of the present invention. This is a drawing to explain ventilation operation.

13 and 14, the exhaust damper included in the ventilation system according to the fourth modified example includes a damper housing 212a and a damper blade 212b, wherein the damper blade 212b has a plurality of slits. It may include structures 212b ₁ and 212b ₂ . According to one embodiment, the damper wing 212b may include a first slit structure 212b ₁ and a second slit structure 212b ₂ . The first slit structure 212b ₁ and the second slit structure 212b ₂ may each include a moisture absorbent AD therein.

The first slit structure 212b ₁ may be disposed on one side of the damper blade 212b, while the second slit structure 212b ₂ may be disposed on the other side of the damper blade 212b. In addition, the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) are arranged to face each other, and the opening of the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) It may be arranged so that the openings face each other.

The moisture absorbent (AD) disposed inside the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) is the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ), respectively. It can be exposed to the outside through an opening formed in. Accordingly, the air moving inside the damper housing 212a passes through the damper wings 212b and through the openings of the first slit structure 212b ₁ and the second slit structure 212b ₂ to the moisture absorbent ( AD) may be provided. Accordingly, moisture may be removed from the air moving inside the damper housing 212a by the desiccant AD.

According to one embodiment, the exhaust damper according to the fourth modified example may be arranged such that the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) face the outdoor direction. Accordingly, moisture can be removed from air flowing indoors from outdoors through the desiccant (AD). As a result, the problem of indoor humidity increasing due to outdoor air during ventilation in summer can be prevented.

In addition, according to one embodiment, as shown in (a) and (b) of FIG. 16, the electric damper according to the fourth modified example includes the first and second slit structures 212b ₁ and 212b ₂ When the desiccant AD disposed in any one of the slit structures is saturated, the damper blade 212b can be rotated in the opposite direction to perform a dehumidifying function through the unsaturated desiccant AD.

Although not shown, the intake damper according to the fourth modified example may also be the same as the exhaust damper according to the fourth modified example.

Figure 15 is a diagram for explaining the damper blade of the exhaust damper included in the ventilation module according to the fifth modification of the present invention, and Figure 16 is a diagram for explaining a method of using the ventilation system in winter according to the fifth modification of the present invention. This is a drawing for

Referring to FIG. 15, the exhaust damper included in the ventilation system according to the fifth modified example includes a damper housing 212a and a damper blade 212b, wherein the damper blade 212b includes a plurality of slit structures 212b. ₁ , 212b ₂ ) may be included. According to one embodiment, the damper wing 212b may include a first slit structure 212b ₁ and a second slit structure 212b ₂ . The first slit structure 212b ₁ and the second slit structure 212b ₂ may each include a desiccant AD and a heater H therein. Specifically, the desiccant (AD) is disposed on the heater (H), so that the desiccant (AD) is exposed to the outside through the opening of the first slit structure (212b ₁ ) or the second slit structure (212b ₂ ). may be exposed.

The first slit structure 212b ₁ may be disposed on one side of the damper blade 212b, while the second slit structure 212b ₂ may be disposed on the other side of the damper blade 212b. In addition, the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) are arranged to face each other, and the opening of the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) It may be arranged so that the openings face each other.

The moisture absorbent (AD) disposed inside the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) is the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ), respectively. It can be exposed to the outside through an opening formed in. Accordingly, the air moving inside the damper housing 212a passes through the damper wings 212b and through the openings of the first slit structure 212b ₁ and the second slit structure 212b ₂ to the moisture absorbent ( AD) may be provided. Accordingly, moisture may be removed from the air moving inside the damper housing 212a by the desiccant AD.

The heater H may be operated in a state in which the radial direction of the damper housing 212a and the damper wing 212b are horizontal (the inside of the damper housing is closed). The heater (H) may heat the desiccant (AD) to desorb moisture from the desiccant (AD). That is, when ventilation is performed through the exhaust damper, dehumidification is performed through the desiccant (AD), whereas when ventilation is not performed through the exhaust damper, moisture is removed from the desiccant (AD) through the heater (H). The desiccant (AD) can be regenerated by desorption. Accordingly, dehumidification efficiency through the desiccant (AD) can be improved.

Referring to FIG. 16, when the exhaust damper according to the fifth modification is used in winter, the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) may be arranged to face the indoor direction. there is. Additionally, the desiccant (AD) can be heated through the heater (H) regardless of whether ventilation is in progress. Accordingly, dehumidification from indoor air or outdoor air may not be performed. As a result, the problem of dry indoor air in winter can be prevented. That is, the exhaust damper according to the fifth modification example has the arrangement direction (outdoor or indoor direction) of the first slit structure (212b ₁ ) and the second slit structure (212b ₂ ) depending on the season (summer or winter). By changing or controlling the operation of the heater H, the indoor humidity can be maintained comfortably.

Although not shown, the intake damper according to the fifth modification example may also be the same as the exhaust damper according to the fifth modification example.

Although the embodiments of the present disclosure have been described above with reference to the accompanying drawings, a person skilled in the art may make various modifications and changes to the present disclosure without departing from the technical spirit of the present disclosure as set forth in the claims below. You will be able to understand that it exists.

100: case
200: exhaust part
300: intake unit
400: Photocatalyst filter unit
500: Light source unit

Claims (4)

A case consisting of a heat exchange element installed in the inner center and a support plate installed diagonally at the inner corners;
A photocatalyst filter unit installed on the outer surface of the heat exchange element, including a first photocatalyst filter unit that adsorbs contaminants in internal air (IA) and a second photocatalyst filter unit that adsorbs contaminants in external air (OA);
a light source unit installed on the support plate to directly irradiate light to the photocatalyst filter unit;
Select an indoor space (Rn) to suck in the interior air (IA) through the first manifold with multiple exhaust holes, and drive the first constant air volume BLDC motor to suck the interior air (IA) through the first intake pipe. an exhaust unit that sucks in air and discharges it through the heat exchange element into a first discharge pipe;
By driving the second constant air volume BLDC motor, external air (OA) is sucked in through the second suction pipe, and then the outside air (OA) transferred to the second discharge pipe through the heat exchange element is supplied to the second air intake pipe having a plurality of intake holes. An intake unit that flows into the selected indoor space (Rn) through the manifold; and
It includes a control unit that controls opening and closing of the plurality of exhaust holes and the plurality of intake holes,
The first photocatalytic filter unit is formed by stacking a first photocatalytic ceramic filter, a secondary pre-filter, and a tertiary HEPA filter on the side where internal air (IA) enters, and the second photocatalytic filter unit allows external air (OA) to enter. A primary pre-filter and a secondary HEPA filter are laminated on the side through which external air (OA) enters, and a tertiary photocatalytic ceramic filter is laminated on the side through which external air (OA) enters. The primary photocatalytic ceramic filter and the tertiary photocatalytic ceramic filter are formed. is formed by coating a photocatalyst solution on a ceramic material, and the photocatalyst coated on the first photocatalyst ceramic filter and the third photocatalyst ceramic filter generates electrons (e-) and holes (h+) when light from the light source unit is irradiated. , electrons (e-) and holes (h+) react with oxygen (O2) and moisture (H2O) in the atmosphere to become anions (O2-) and hydroxy radicals (-OH), and anions (O2-) and hydroxy radicals After contact with harmful substances, the active oxygen radical (-OH) decomposes the harmful substances and converts them into moisture and carbon dioxide.
The light source unit,
It includes a plurality of light sources, and a curved second base on which the plurality of light sources are disposed,
The second base is,
It is attached to a support plate installed diagonally at an inner edge of the case, and has a flat central portion, a first inclined portion extending to one side of the central portion, a second inclined portion extending to the other side of the central portion, and a concave direction in which it is attached to the supporting plate. A ventilation module having an antibacterial and deodorizing function using a photocatalyst including a concave portion formed to form an empty space between the support plate and the concave portion of the second base.
A case consisting of a heat exchange element installed in the inner center and a support plate installed diagonally at the inner corners;
A photocatalyst filter unit installed on the outer surface of the heat exchange element, including a first photocatalyst filter unit that adsorbs contaminants in internal air (IA) and a second photocatalyst filter unit that adsorbs contaminants in external air (OA);
a light source unit installed on the support plate to directly irradiate light to the photocatalyst filter unit;
Select an indoor space (Rn) to suck in the interior air (IA) through the first manifold with multiple exhaust holes, and drive the first constant air volume BLDC motor to suck the interior air (IA) through the first intake pipe. an exhaust unit that sucks in air and discharges it through the heat exchange element into a first discharge pipe;
By driving the second constant air volume BLDC motor, external air (OA) is sucked in through the second suction pipe, and then the outside air (OA) transferred to the second discharge pipe through the heat exchange element is supplied to the second air intake pipe having a plurality of intake holes. An intake unit that flows into the selected indoor space (Rn) through the manifold; and
It includes a control unit that controls opening and closing of the plurality of exhaust holes and the plurality of intake holes,
The first photocatalytic filter unit is formed by stacking a first photocatalytic ceramic filter, a secondary pre-filter, and a tertiary HEPA filter on the side where internal air (IA) enters, and the second photocatalytic filter unit allows external air (OA) to enter. A primary pre-filter and a secondary HEPA filter are laminated on the side through which external air (OA) enters, and a tertiary photocatalytic ceramic filter is laminated on the side through which external air (OA) enters. The primary photocatalytic ceramic filter and the tertiary photocatalytic ceramic filter are formed. is formed by coating a photocatalyst solution on a ceramic material, and the photocatalyst coated on the first photocatalyst ceramic filter and the third photocatalyst ceramic filter generates electrons (e-) and holes (h+) when light from the light source unit is irradiated. , electrons (e-) and holes (h+) react with oxygen (O2) and moisture (H2O) in the atmosphere to become anions (O2-) and hydroxy radicals (-OH), and anions (O2-) and hydroxy radicals After contact with harmful substances, the active oxygen radical (-OH) decomposes the harmful substances and converts them into moisture and carbon dioxide.
The light source unit,
Comprising a plurality of light sources and a third base on which the plurality of light sources are disposed,
The third base includes a ceiling surface formed on one side of the support plate in the ceiling direction, a floor surface formed on a bottom side of the support plate, and an inclined surface connecting the ceiling surface and the floor, and the thickness increases from the top to the bottom in the ceiling direction. Ventilation module with antibacterial and deodorizing functions using photocatalyst including thinning
According to claim 1 or 2,
The plurality of exhaust holes include an exhaust damper formed in the form of an opening and closing plate therein,
The exhaust damper is,
It includes a damper housing in the form of a hollow tube, and a damper wing in the form of a circular plate,
The damper wings are,
It includes a first slit structure disposed on one side and having an opening, and a second slit structure disposed on the other side and having an opening disposed to face the opening of the first slit structure,
Inside the first slit structure and the second slit structure,
Includes a moisture absorbent disposed to be exposed to the outside through each of the openings,
When the moisture in any one of the desiccant is saturated, the damper blade rotates about the radial direction of the damper housing to perform a dehumidifying function through the non-saturated desiccant. Ventilation module with antibacterial and deodorizing functions
According to clause 3,
Inside the first slit structure and the second slit structure,
A ventilation module having antibacterial and deodorizing functions using a photocatalyst, further comprising heaters disposed respectively, wherein the heaters evaporate moisture from the moisture absorbent.

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