KR20230089612A - Ventilation system including a photocatalyst with deodorizing and antibacterial functions and an electric damper with environmental adaptive emission control - Google Patents

Abstract

Provided is a ventilation system. The ventilation system may comprise: a case composed of a heat exchange element installed at the center on the inside, and a support plate which is diagonally installed at the inner corner; an exhaust unit which selects an indoor space to suck the inner air by means of a first manifold including a plurality of exhaust holes and an exhaust damper, and operates a first constant air volume BLDC motor to suck the inner air by means of a first suction pipe before discharging the same by means of a first discharge pipe after passing through the heat exchange element; an air suction unit which operates a second constant air volume BLDC motor to suck the outer air by means of the second suction pipe to introduce the outer air, which is transferred to the second discharge pipe by means of the heat exchange element to an indoor space selected by means of a second manifold including a plurality of air suction holes and an air suction damper; a photocatalyst filter unit which is installed on the outer surface of the heat exchange element to adsorb contamination sources; a light source unit which is installed at the support plate to directly project light onto the photocatalyst filter unit; a sensor unit including a first sensor measuring the air quality of the indoor space, and a second sensor measuring the wind pressure of the air moving in the exhaust damper and the suction damper; and a control unit which controls the opening and closing degree of the exhaust damper and the suction damper based on the wind pressure of the air moving in the exhaust damper and the suction damper measured by means of the second sensor and the air quality of the indoor space measured by means of the first sensor. Therefore, sterilization and deodorizing effects may be improved.

Description

Ventilation system including a photocatalyst with deodorizing and antibacterial functions and an electric damper with environmental adaptive emission control}

The present invention relates to a ventilation system, and more particularly, to a ventilation system including a photocatalyst having deodorizing and antibacterial functions and an electric damper capable of adaptively controlling an engine displacement.

An air conditioning damper is one of the air conditioning elements installed in the air passage of a duct to control the amount of air flow or to variably block the flow of air. The smell or burning of food that often occurs when cooking or cooking in the kitchen of a multi-family house such as an apartment. It is installed in a gas range hood to discharge gas, a bathroom exhaust duct to discharge moisture and odor in a toilet or bathroom, and a smart ventilation duct for air conditioning in a cooling/heating system with controlled humidity and temperature.

The air conditioning damper installed in the gas range hood and bathroom exhaust duct is a movable element that is normally in a state of blocking the flow path of the duct and opens by manipulation when necessary. Precision), it should be capable of reducing air volume loss or duct resistance (functionality for static pressure fan), and the material and configuration should be simple and the manufacturing cost should be low (economic efficiency). Accordingly, various studies related to dampers have been conducted.

For example, in Korean Utility Model Publication No. 20-2021-0002098 (Application No.: 20-2020-0000865, Applicant: Seong Ho-kyung), the blocking plate is rotatable to automatically open and close the blocking plate that blocks the flow of gas. The configured damper; It is characterized in that it includes an automatic opening and closing means installed on one side of the damper to block the flow of air by rotating the blocking plate by a cylinder and a gear, and is installed in an air conditioning duct to control the air flow. Since the damper does not open even with strong wind pressure, it is possible to precisely control the uniform air volume of the damper, and the cylinder moves evenly when adjusting the air volume of the damper, so that the damper can be opened evenly without causing eccentricity. Disclosed is a damper opening and closing device for an air conditioning duct having an effect of easily determining the open state of the damper since the open state can be confirmed from the outside as well as being made.

Republic of Korea Utility Model Publication 20-2021-0002098

One technical problem to be solved by the present invention is to provide a ventilation system with improved sterilization and deodorization effects of introduced external air.

Another technical problem to be solved by the present invention is to provide a ventilation system with excellent photocatalytic efficiency.

Another technical problem to be solved by the present invention is to provide a ventilation system capable of reducing ventilation time.

Another technical problem to be solved by the present invention is to provide a ventilation system in which light emitted from a light source unit can be evenly irradiated to a photocatalyst.

Another technical problem to be solved by the present application is to provide a ventilation system having a heat dissipation effect.

Another technical problem to be solved by the present application is to provide a ventilation system capable of preventing dust from accumulating in the light source unit.

Another technical problem to be solved by the present application is to provide a ventilation system that selectively and automatically controls ventilation of a desired indoor space.

Another technical problem to be solved by the present invention is to provide an electric damper and a ventilation system including the same capable of adaptively controlling displacement.

The technical problem to be solved by the present invention is not limited to the above.

In order to solve the above technical problems, the present invention provides a ventilation system.

According to one embodiment, the ventilation system sucks internal air through a first manifold including a case composed of a heat exchange element installed in the inner center and a support plate installed diagonally at an inner corner, a plurality of exhaust holes, and an exhaust damper. After selecting the indoor space to be operated, driving the first constant air volume BLDC motor, sucking in the internal air through the first suction pipe, and then passing through the heat exchange element to the first exhaust pipe, the second constant air volume BLDC motor After the outside air is sucked in through the second suction pipe, the outside air transferred to the second discharge pipe through the heat exchange element is introduced into the selected indoor space through the second manifold including a plurality of air intake holes and an intake damper. a photocatalytic filter unit installed on the outer surface of the heat exchange element to absorb pollutants, a light source unit installed on the support plate to directly irradiate light to the photocatalytic filter unit, a first sensor for measuring air quality in an indoor space, and A sensor unit including a second sensor for measuring the wind pressure of the air moving in the exhaust damper and the intake damper, and the air quality of the indoor space measured through the first sensor, and the air quality measured through the second sensor. A controller may be included to control opening/closing degrees of the exhaust damper and the intake damper based on wind pressure of air moving in the exhaust damper and the intake damper.

According to an embodiment, the control unit controls the exhaust damper and the intake air pressure so that wind pressure of air moving in the exhaust damper and the intake damper becomes a reference air pressure based on the air quality of the indoor space measured by the first sensor. After controlling the degree of opening and closing of the damper and measuring the wind pressure of the air moving in the exhaust damper and the intake damper through the second sensor, the wind pressure of the air moving in the exhaust damper and the intake damper is the reference wind pressure and controlling opening/closing degrees of the exhaust damper and the intake damper so as to match the reference air pressure when the wind pressure does not match the reference air pressure.

According to an embodiment, the photocatalyst filter unit includes a first photocatalyst filter unit adsorbing pollutants in the internal air and a second photocatalyst filter unit adsorbing pollutants in the external air, and the first photocatalyst filter unit has a side surface through which internal air enters. is formed by stacking a first photocatalytic ceramic filter, a second pre-filter, and a tertiary HEPA filter, and the first pre-filter and the second HEPA filter are laminated on the side of the second photocatalyst filter part through which external air enters, and the external air It may include being formed by stacking a tertiary photocatalytic ceramic filter on the side of the advancing side.

According to an embodiment, the control unit may include automatically opening and closing the exhaust damper to selectively discharge internal air, and automatically opening and closing the intake damper to selectively introduce external air.

In the ventilation system according to an embodiment of the present invention, internal air is supplied through a first manifold including a case composed of a heat exchange element installed at the inner center and a support plate installed diagonally at the inner corner, a plurality of exhaust holes, and an exhaust damper. After selecting the indoor space to be sucked in, driving the first constant air volume BLDC motor, sucking in the internal air through the first suction pipe, and then flowing it out to the first discharge pipe through the heat exchange element, the second constant air volume BLDC motor is driven to suck in outside air through the second suction pipe, and then transport the outside air through the heat exchange element to the second discharge pipe to the selected indoor space through the second manifold including a plurality of air intake holes and an intake damper. An intake unit for inflow, a photocatalytic filter unit installed on the outer surface of the heat exchange element to absorb pollutants, a light source unit installed on the support plate to directly irradiate light to the photocatalyst filter unit, a first sensor for measuring air quality in the indoor space, and a sensor unit including a second sensor for measuring wind pressure of air moving in the exhaust damper and the intake damper, and the air quality of the indoor space measured through the first sensor and the air quality measured through the second sensor. A controller may be included to control opening/closing degrees of the exhaust damper and the intake damper based on wind pressure of air moving in the exhaust damper and the intake damper. Accordingly, since the light source unit activating the photocatalyst is disposed adjacent to the photocatalyst filter unit, photocatalytic efficiency may be improved.

In addition, the plurality of exhaust holes include an exhaust damper formed in the shape of an opening and closing plate therein, and the plurality of intake holes include an intake damper formed in the shape of an opening and closing plate therein, and the exhaust damper is automatically opened and closed to selectively open and close the inside. A ventilation module having a photocatalyst activating light source including the control unit discharging air IA and selectively introducing outside air OA by automatically opening and closing the intake damper may be provided. Accordingly, a desired indoor space can be selectively ventilated through a control unit that automatically opens and closes the exhaust damper and the intake damper.

Further, the control unit determines the degree of opening and closing of the exhaust damper and the intake damper so that the wind pressure of the air moving in the exhaust damper and the intake damper becomes a reference wind pressure based on the air quality of the indoor space measured by the first sensor. and after measuring the wind pressure of the air moving in the exhaust damper and the intake damper through the second sensor, the wind pressure of the air moving in the exhaust damper and the intake damper does not match the reference wind pressure. In this case, it may include controlling opening/closing degrees of the exhaust damper and the intake damper to match the reference wind pressure. Accordingly, a ventilation system capable of maintaining a comfortable indoor environment by adjusting an exhaust amount adaptively to the environment may be provided.

1 is a plan view of a ventilation system according to an embodiment of the present invention.
2 is a diagram for explaining in detail an exhaust operation and an intake operation according to an embodiment of the present invention.
3 is a perspective view of a first manifold and a second manifold of a ventilation system according to an embodiment of the present invention.
4 is a perspective view of an exhaust damper included in a first manifold according to an embodiment of the present invention.
5 is a view for explaining a TT′ cross section of an exhaust damper included in a first manifold according to an embodiment of the present invention.
6 is a view for explaining the operation of an exhaust damper included in a first manifold according to an embodiment of the present invention.
7 is a diagram for explaining environment-adaptive displacement control of a ventilation system according to an embodiment of the present invention.
8 is an internal cross-sectional view illustrating a process of transporting air and exchanging heat during an exhaust operation of a ventilation system according to an embodiment of the present invention.
9 is an internal cross-sectional view illustrating a process of transporting air and exchanging heat during an intake operation of a ventilation system according to an embodiment of the present invention.
10 is an internal cross-sectional view in which a photocatalytic ceramic filter is laminated on a ventilation module according to an embodiment of the present invention.
11 is an internal perspective view illustrating that a photocatalytic ceramic filter is disposed close to a light source unit of a ventilation system according to an embodiment of the present invention.
12 is a perspective view of a light source unit of a ventilation system according to a first modified example of the present invention.
13 is a perspective view of a light source unit of a ventilation system according to a second modified example of the present invention.
14 is a perspective view of a light source unit of a ventilation system according to a third modified example of the present invention.
15 is a view for explaining damper blades of an exhaust damper included in a ventilation system according to a fourth modified example of the present invention.
16 is a view for explaining a ventilation operation through an exhaust damper included in a ventilation system according to a fourth modified example of the present invention.
17 is a view for explaining damper blades of an exhaust damper included in a ventilation system according to a fifth modified example of the present invention.
18 is a view for explaining a method of using a ventilation system 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 accompanying drawings. However, the technical spirit 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 the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it may be directly formed on the other element or a third element may be interposed therebetween. Also, in the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content.

In addition, although terms such as first, second, and third are used to describe various elements in various embodiments of the present specification, these elements should not be limited by these terms. Therefore, what is referred to as a first element in one embodiment may be referred to as a second element in another embodiment.

Each embodiment described and illustrated herein also includes its complementary embodiments. In addition, in this specification, 'and/or' is used to mean including at least one of the elements listed before and after.

In the specification, expressions in the singular number include plural expressions unless the context clearly dictates otherwise. In addition, the terms "comprise" or "having" are intended to designate that the features, numbers, steps, components, or combinations thereof described in the specification exist, but one or more other features, numbers, steps, or components. It should not be construed as excluding the possibility of the presence or addition of elements or combinations thereof.

In addition, 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 subject matter of the present invention, the detailed description will be omitted.

1 is a plan view of a ventilation system according to an embodiment of the present invention, and FIG. 2 is a view for explaining in detail an exhaust operation and an intake operation according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the ventilation system according to the embodiment includes a case 100 formed to transfer air and heat exchange therein, an exhaust unit 200 for discharging internal air (IA) to the outside, and external air The intake part 300 for introducing (OA) into the inside, the photocatalytic filter part 400 located inside the case 100, the light source part 500, the sensor part (not shown), and the control part (not shown) can include

Referring to FIG. 2 , 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 when the inside air (IA) is discharged to the outside or the outside air (OA) is introduced into the inside. It may be installed inside the case 100 .

The support plate 120 may be diagonally installed at an inner corner of the case 100 so that a light source unit 500 to be described later can be attached thereto.

The exhaust unit 200 includes a first manifold 210, a first constant air volume BLDC motor 220, a first suction pipe 230, and a first discharge pipe ( 240) may be included.

3 is a perspective view of a first manifold and a second manifold of a ventilation system according to an embodiment of the present invention, and FIG. 4 is a perspective view of an exhaust damper included in a first manifold according to an embodiment of the present invention. 5 is a view for explaining the T-T' cross section of the exhaust damper included in the first manifold according to the embodiment of the present invention, and FIG. 6 is the operation of the exhaust damper included in the first manifold according to the embodiment of the present invention. , and FIG. 7 is a diagram for explaining environment-adaptive displacement control of a ventilation system according to an embodiment of the present invention.

Referring to FIG. 3 , the first manifold 210 is formed in a structure having a plurality of branch holes, and a plurality of exhaust holes 211 formed at the ends of each branch hole and formed inside the exhaust hole 211. A plurality of exhaust dampers 212 may be included.

A plurality of exhaust holes 211 are formed at the end of the branch outlet of the first manifold 210 and connected to each indoor space Rn, and the indoor space Rn refers to a part of a room to be ventilated or It includes the whole, and may include, for example, room 1 (R1), room 2 (R2), living room (R3), bathroom (R4), and the like.

The exhaust damper 212 is formed in the form of an opening/closing plate inside the exhaust hole 211 to select the indoor space Rn to suck the internal air IA, and the opening and closing are automatically controlled by a control unit to be described later. It can be.

The first constant air volume BLDC motor 220 sucks the internal air (IA) of the indoor space (Rn) by using the suction force of the motor, and the static pressure inside the exhaust unit 200 (when the fluid is flowing in the pipe) Even if the number of rotations of the motor is reduced due to the pressure acting in the direction perpendicular to the flow), the time required for ventilation can be shortened by correcting the number of rotations by the reduced number of rotations.

Hereinafter, the exhaust damper 212 will be described in more detail with reference to FIGS. 4 to 6 . The exhaust damper 212 may include a damper housing 212a and damper wings 212b. The damper housing 212a may provide a passage through which the inside air (IA) and the outside air (OA) move. According to one embodiment, the damper housing 212a may have a hollow tube shape. Unlike this, according to another embodiment, the damper housing 212a may have various shapes such as a hollow hexahedral tube shape. The shape of the damper housing 212a is not limited.

The damper wing 212b may be mounted inside the damper housing 212a. Specifically, the damper wing 212b may be horizontally mounted in the damper housing 212a in a radial direction (X-axis direction) of the damper housing 212a. According to one embodiment, the damper wing 212b may have a circular plate shape in which a semicircular plate is coupled. In addition, the damper wing 212b may be mounted inside the damper housing 212a so as to rotate in a radial direction (X-axis direction) of the damper housing 212a.

As the damper wing 212b rotates, the inside of the damper housing 212a can be opened and closed. Specifically, when the damper wing 212b is disposed horizontally with the radial direction of the damper housing 212a, the inside of the damper housing 212a may be closed. Accordingly, movement of indoor air and outdoor air through the exhaust damper 212 may be restricted. In contrast, when the damper wing 212b is rotated clockwise or counterclockwise about the radial direction of the damper housing 212a in a state in which it is disposed horizontally with the radial direction of the damper housing 212a, The inside of the damper housing 212a may be open. Accordingly, the movement of the inside air (IA) and the outside air (OA) through the exhaust damper 100 can be made.

The sensor unit (not shown) may include a first sensor (not shown) and a second sensor (not shown). The first sensor may measure indoor air quality. The first sensor may be installed in an indoor place (eg, kitchen, bathroom, living room, etc.) where air quality is to be measured. Unlike this, the second sensor may measure wind pressure of air moving in the exhaust damper 212 . The second sensor may be disposed inside the damper housing 212a.

The control unit (not shown) controls the damper blades 212b based on the indoor air quality measured by the first sensor and the wind pressure of the air moving in the exhaust damper measured by the second sensor. can Accordingly, the degree of opening and closing of the damper housing 212a can be controlled.

According to an embodiment, the control unit moves the damper blades 212b to the damper so that the wind pressure of the air moving in the exhaust damper 100 becomes the reference wind pressure based on the indoor air quality measured by the first sensor. The housing 212a may be rotated in a radial direction as an axis.

In addition, the control unit measures the wind pressure of the air moving in the exhaust damper 212 through the second sensor, and then when the wind pressure of the air moving in the exhaust damper 212 does not match the reference wind pressure , the damper blades 212b may be rotated around the radial direction of the damper housing 212a to match the reference wind pressure.

More specifically, when the wind pressure of the air moving in the exhaust damper 212 measured by the second sensor is smaller than the reference wind pressure, the wind pressure of the air moving in the exhaust damper 212 is equal to the reference wind pressure. To match, as shown in (a) of FIG. 7 , the damper blades 212b may be rotated around the radial direction of the damper housing 212a (for example, rotated counterclockwise). Accordingly, the flow rate of air moving in the exhaust damper 212 can be increased.

In contrast, when the wind pressure of the air moving in the exhaust damper 212 measured by the second sensor is greater than the reference wind pressure, the wind pressure of the air moving in the exhaust damper 212 coincides with the reference wind pressure. As shown in (b) of FIG. 7 , the damper blades 212b may be rotated around the radial direction of the damper housing 212a (for example, rotated clockwise). Accordingly, the flow rate of air moving in the exhaust damper 212 can be reduced.

According to one embodiment, the controller is electrically connected to the first manifold 210 including the exhaust damper 212 and the second manifold 310 including the intake damper 312, and It is possible to selectively open and close the exhaust damper 212 to discharge internal air (IA), and selectively open and close the plurality of intake dampers 312 to control to introduce external air (OA).

8 is an internal cross-sectional view illustrating a process of transporting air and exchanging heat during an exhaust operation of a ventilation system according to an embodiment of the present invention.

Referring to FIG. 8, the first suction pipe 230 is connected to the other end of the first manifold 210, and the internal air (IA) sucked by the first constant air volume BLDC motor 220 is transferred to the heat transfer element. It can be transferred to (110).

The first discharge pipe 240 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.

Referring back to FIG. 2, the intake unit 300 includes a second manifold 310, a second constant air volume BLDC motor 320, and a second suction pipe to selectively introduce outside air OA into the inside. 330) and a second discharge pipe 340.

Referring back to FIG. 3 , the second manifold 310 is formed in a structure having a plurality of branch holes, and a plurality of intake holes 311 formed at the ends of each branch hole and the inside of the intake hole 311. A plurality of formed intake dampers 312 may be included.

A plurality of intake holes 311 are formed at the end of the branch outlet of the second manifold 310 and are connected to each indoor space Rn. The indoor space Rn includes part or all of a room to be ventilated, and may include, for example, room 1 (R1), room 2 (R2), living room (R3), bathroom (R4), and the like. there is.

The intake damper 312 is formed in the form of an opening/closing plate inside the intake hole 311 to select an indoor space (Rn) into which the outside air (OA) is introduced, and is automatically opened and closed by the control unit. can

According to one embodiment, the intake damper 312 may be the same as the exhaust damper 212 described with reference to FIGS. 4 to 6 . Accordingly, detailed descriptions are omitted. The intake damper 312 is also controlled by the sensor unit and the control unit. Unlike the exhaust damper 212, the second sensor measures the wind pressure of the air moving in the intake damper 312, and through this can be controlled

9 is an internal cross-sectional view illustrating a process of transporting air and exchanging heat during an intake operation of a ventilation system according to an embodiment of the present invention.

Referring to FIG. 9, the second constant air volume BLDC motor 320 sucks outdoor air (OA) using the suction force of the motor, and the static pressure inside the intake part 300 (the fluid flows through the pipe) Even if the rotation speed of the motor is reduced due to the pressure acting in the direction perpendicular to the flow when there is pressure), the time required for ventilation can be shortened by correcting the reduced rotation speed.

The second suction pipe 330 extends from the outside and transfers the outside air OA sucked by the second constant air volume BLDC motor 320 to the heat transfer element 110 .

The second discharge pipe 340 may introduce the outside air OA that has passed through the heat transfer element 110 into the indoor space Rn through the second manifold 310 .

10 is an internal cross-sectional view in which a photocatalytic ceramic filter is laminated on a ventilation module according to an embodiment of the present invention.

Referring to FIG. 10, the photocatalyst filter unit 400 is installed on the outer surface of the heat exchange element 110, and the first photocatalyst filter unit 410 adsorbs pollutants from the internal air (IA) and external air (OA). It may include a second photocatalytic filter unit 420 for adsorbing pollutants.

The first photocatalytic filter unit 410 may be formed by stacking a first photocatalytic ceramic filter 411, a second pre-filter 412, and a tertiary HEPA filter 413 on a side surface of the heat exchange element 110. .

The primary photocatalytic ceramic filter 411 may be stacked on the top of an outer surface of the heat exchange element 110 through which internal air (IA) enters.

The secondary pre-filter 412 may be stacked on a lower end of the primary photocatalytic ceramic filter 411 .

The tertiary HEPA filter 413 is stacked on the lower end of the secondary pre-filter 412, and finally, the first photocatalytic filter unit 410 may have a three-stage filter structure.

The second photocatalytic filter unit 420 may be formed by stacking a first pre-filter 421, a second HEPA filter 422, and a third photocatalytic ceramic filter 423 on the other side of the heat exchange element 110. .

The primary pre-filter 421 may be stacked on the other side of the heat exchange element 110 through which the outside air OA enters.

The secondary HEPA filter 422 may be stacked below the primary pre-filter 421 .

The tertiary photocatalytic ceramic filter 423 may be stacked on another side of the heat exchange element 110 through which the outside air (OA) exits.

11 is an internal perspective view illustrating that a photocatalytic ceramic filter is disposed close to a light source unit of a ventilation system according to an embodiment of the present invention.

Referring to FIG. 11 , the light source unit 500 is installed close to the support plate 120 to directly radiate light to the photocatalytic filter unit 400 and to radiate light to the first photocatalytic filter unit 410 . It may include a first light source unit 510 that emits light and a second light source unit 520 that radiates light to the second photocatalytic filter unit 420 . The light source unit 500 may be a lamp or an LED, and light emitted from the light source unit 500 may be ultraviolet (UV) or visible light.

The first light source unit 510 may irradiate light to the primary photocatalytic ceramic filter 411 stacked on top of the first photocatalytic filter unit 410 .

The second light source unit 520 may irradiate light to the tertiary photocatalytic ceramic filter 423 stacked on the other side of the heat exchange element 110 through which the outside air OA advances.

12 is a perspective view of a light source unit of a ventilation system according to a first modified example of the present invention.

Referring to FIG. 12 , the light source unit 500 has a plurality of light sources 500' and may further include a first base 501.

The first base 501 is attached to the support plate 120, and the first base 501 includes a flat central portion 501a, a first inclined portion 501b on one side of the central portion, and a second inclined portion 501b on the other side of the central portion. An inclined portion 501c may be included. The thickness of the first base 501 may decrease from the central portion 501a to the first inclined portion 501b, and from the central portion 501a to the second inclined portion 501c, the first base 501 may have a reduced thickness. The thickness of the base 501 may be reduced. Due to this, the upper surface of the first inclined portion 501b and the upper surface of the second inclined portion 501c may be inclined with respect to the upper surface of the support plate 120 .

The plurality of light sources 500' may be disposed on the first inclined portion 501b and the second inclined portion 501c.

The light emitted from the plurality of light sources 500' may be tilted and irradiated according to the inclined angle of the upper surface of the first inclined portion 501b and the inclined angle of the upper surface of the second inclined portion 501c.

In conclusion, as the irradiation range of the light emitted from the light source unit 500 is widened, the photocatalyst of the photocatalytic filter unit 400 is more activated and the photocatalytic efficiency can be improved.

13 is a perspective view of a light source unit of a ventilation system according to a second modified example of the present invention.

Referring to FIG. 13 , the light source unit 500 has a plurality of light sources 500' and may further include a second base 502 having a curved shape.

The second base 502 is attached to the support plate 120, and the second base 502 includes a flat central portion 502a, a first inclined portion 502b 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 502c and may include a concave portion 502d formed concavely in a direction attached to the support plate 120 . Due to this, the upper surface of the first inclined portion 502b and the upper surface of the second inclined portion 502c 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 502d of the 502 .

The plurality of light sources 500' may be disposed on the first inclined portion 502b and the second inclined portion 502c.

The light emitted from the plurality of light sources 500' may be tilted and irradiated according to the inclined angle of the upper surface of the first inclined portion 502b and the inclined angle of the upper surface of the second inclined portion 502c, An empty space is formed between the support plate 120 and the concave portion 502d of the second base 502, and the air inside the empty space absorbs heat emitted from the plurality of light sources 500', Absorbed air can be released to the outside.

In conclusion, as the irradiation range of the light emitted from the light source unit 500 widens, the photocatalyst of the photocatalytic filter unit 400 is more activated and the photocatalytic efficiency can be improved. A heat dissipation effect of absorbing and dissipating heat in an empty space formed at the bottom of the concave portion 502d of the second base 502 can be obtained.

14 is a perspective view of a light source unit of a ventilation system according to a third modified example of the present invention.

Referring to FIG. 14 , the light source unit 500 has a plurality of light sources 500' and may further include a third base 503.

The third base 503 is attached to the support plate 120, and the third base 503 has a ceiling surface 503a formed on one side in the ceiling direction and a floor surface formed on the floor direction side ( 503b) and an inclined surface 503c connecting the ceiling surface 503a and the floor surface 503b. The thickness of the third base 503 becomes thinner from the top to the bottom in the ceiling direction, and the inclination can be adjusted according to the ratio between the width of the ceiling surface 503a and the width of the bottom surface 503b. Due to this, the upper surface of the inclined surface 503a may be inclined by the adjusted inclination with respect to the upper surface of the support plate 120 .

The plurality of light sources 500' may be disposed on the inclined surface 503c.

Depending on the angle of the inclined surface 503c, dust accumulated in the plurality of light sources 500' may fall.

In conclusion, as the inclination angle of the inclined surface 503c on which the light source unit 500 is disposed is adjusted, dust accumulated in the plurality of light sources 500' can be prevented from deteriorating photocatalytic efficiency.

15 is a view for explaining damper blades of an exhaust damper included in a ventilation system according to a fourth modified example of the present invention, and FIG. It is a drawing for explaining ventilation operation.

15 and 16, the exhaust damper included in the ventilation system according to the fourth modified example includes a damper housing 212a and a damper wing 212b, and the damper wing 212b includes a plurality of slits Structures 212b ₁ and 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 . Each of the first slit structure 212b ₁ and the second slit structure 212b ₂ may include a moisture absorbent AD therein.

The first slit structure 212b ₁ may be disposed on one side of the damper wing 212b, while the second slit structure 212b ₂ may be disposed on the other side of the damper wing 212b. In addition, the first slit structure 212b ₁ and the second slit structure 212b ₂ are disposed to face each other, and the gap between the opening of the first slit structure 212b ₁ and the second slit structure 212b ₂ The openings may be arranged to face each other.

The moisture absorbent AD disposed inside the first slit structure 212b ₁ and the second slit structure 212b ₂ may be applied to the first slit structure 212b ₁ and the second slit structure 212b ₂ , respectively. It can be exposed to the outside through the 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) can be provided. Accordingly, moisture may be removed from the air moving inside the damper housing 212a by the absorbent AD.

According to an embodiment, in the exhaust damper according to the fourth modified example, the first slit structure 212b ₁ and the second slit structure 212b ₂ may be disposed toward the outdoor direction. Accordingly, moisture may be removed from the air introduced from the outside to the inside through the desiccant AD. Due to this, the problem of increasing indoor humidity 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 absorbent AD disposed in any one of the slit structures is saturated, the damper blades 212b may be rotated in the opposite direction to perform a dehumidifying function through the unsaturated absorbent 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.

17 is a view for explaining damper blades of an exhaust damper included in a ventilation system according to a fifth modified example of the present invention, and FIG. 18 is a view to explain a method of using the ventilation system according to a fifth modified example of the present invention in winter. It is a drawing for

Referring to FIG. 17, the exhaust damper included in the ventilation system according to the fifth modified example includes a damper housing 212a and damper wings 212b, and the damper wings 212b include a plurality of slit structures 212b ₁ , 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 . Each of the first slit structure 212b ₁ and the second slit structure 212b ₂ may include a moisture absorbent AD and a heater H therein. Specifically, the moisture absorbent AD is disposed on the heater H, and the moisture absorbent AD is exposed to the outside through an 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 wing 212b, while the second slit structure 212b ₂ may be disposed on the other side of the damper wing 212b. In addition, the first slit structure 212b ₁ and the second slit structure 212b ₂ are disposed to face each other, and the gap between the opening of the first slit structure 212b ₁ and the second slit structure 212b ₂ The openings may be arranged to face each other.

The moisture absorbent AD disposed inside the first slit structure 212b ₁ and the second slit structure 212b ₂ may be applied to the first slit structure 212b ₁ and the second slit structure 212b ₂ , respectively. It can be exposed to the outside through the 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) can be provided. Accordingly, moisture may be removed from the air moving inside the damper housing 212a by the absorbent 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 (a state in which the inside of the damper housing is closed). The heater H may heat the moisture absorbent AD to desorb moisture from the moisture absorbent 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 absorbent (AD) may be regenerated by desorption. Accordingly, dehumidification efficiency through the moisture absorbent AD may be improved.

Referring to FIG. 18 , when the exhaust damper according to the fifth modified example is used in winter, the first slit structure 212b ₁ and the second slit structure 212b ₂ may be disposed to face indoors. there is. In addition, the moisture absorbent AD may be heated through the heater H regardless of whether ventilation is performed. Accordingly, dehumidifying operation from indoor air or outdoor air may not be performed. Due to this, the problem of drying indoor air in winter can be prevented. That is, in the exhaust damper according to the fifth modified example, the first slit structure 212b ₁ and the second slit structure 212b ₂ are disposed (outdoor direction or indoor direction) according to 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 modified example may also be the same as the exhaust damper according to the fifth modified example.

In the above, the present invention has been described in detail using preferred embodiments, but the scope of the present invention is not limited to specific embodiments, and should be interpreted according to the appended claims. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

100: case
200: exhaust unit
300: intake part
400: photocatalyst filter unit
500: light source

Claims (4)

A case composed of a heat exchange element installed in the inner center and a support plate installed diagonally at an inner corner;
After selecting an indoor space to suck in the internal air through the first manifold including a plurality of exhaust holes and an exhaust damper, driving the first constant air volume BLDC motor to suck in the internal air through the first suction pipe, an exhaust unit that discharges to the first discharge pipe through the heat exchange element;
A second manifold including a plurality of intake holes and an intake damper that drives the second constant air volume BLDC motor to suck in outside air through the second suction pipe and transfers the outside air to the second discharge pipe through the heat exchange element an air intake unit that flows into the selected indoor space through;
a photocatalyst filter unit installed on an outer surface of the heat exchange element to adsorb pollutants;
a light source unit installed on the support plate to directly irradiate light to the photocatalytic filter unit;
a sensor unit including a first sensor for measuring air quality in an indoor space, and a second sensor for measuring wind pressure of air moving in the exhaust damper and the intake damper; and
The degree of opening and closing of the exhaust damper and the intake damper is determined based on the air quality of the indoor space measured by the first sensor and the wind pressure of the air moving in the exhaust damper and the intake damper measured by the second sensor. Ventilation system including a control unit for controlling.
According to claim 1,
The control unit,
Based on the air quality of the indoor space measured by the first sensor, the degree of opening and closing of the exhaust damper and the intake damper is controlled so that the wind pressure of the air moving in the exhaust damper and the intake damper becomes a reference wind pressure,
After measuring the wind pressure of the air moving in the exhaust damper and the intake damper through the second sensor, when the wind pressure of the air moving in the exhaust damper and the intake damper does not match the reference wind pressure, the reference wind pressure and controlling the degree of opening and closing of the exhaust damper and the intake damper to match wind pressure.
According to claim 1,
The photocatalytic filter unit includes a first photocatalyst filter unit adsorbing contaminants in the internal air and a second photocatalyst filter unit adsorbing pollutants in the external air;
The first photocatalytic filter unit is formed by stacking a first photocatalytic ceramic filter, a second pre-filter, and a tertiary HEPA filter on a side surface through which internal air enters,
The second photocatalyst filter unit is formed by stacking a first pre-filter and a second HEPA filter on a side surface through which external air enters, and a third photocatalytic ceramic filter stacked on a side surface through which external air exits.
According to claim 1,
The ventilation system of claim 1 , wherein the control unit automatically opens and closes the exhaust damper to selectively discharge internal air, and automatically opens and closes the intake damper to selectively introduce external air.

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