KR102474064B1 - Ventilation System Typed Indoor Air Sterilzing - Google Patents

Abstract

The present invention is a case body (10); a total heat exchange unit 20 dividing the inside of the case body 10 into first to fourth accommodating spaces; an indoor air intake port 30 communicating with the first accommodating space of the case body 10; an outdoor air intake port 31 communicating with the second accommodating space of the case body 10; an outdoor air outlet (32) communicating with the third accommodating space of the case body (10); an indoor air outlet (33) communicating with the fourth accommodating space of the case body (10); an intake fan (40) installed in the third accommodating space of the case body (10) to be connected to the outdoor air outlet (32); an exhaust fan 50 installed in the fourth accommodating space of the case body 10 to be connected to the indoor air exhaust port 33; a filter 60 installed in the receiving space of the case body 10; a UV light source 70 installed in the accommodation space of the case body 10 to sterilize contaminants contained in the air; and a controller 100 controlling the operation of the intake fan 40, the exhaust fan 50, and the bypass operating means 90.

Description

Ventilation System Typed Indoor Air Sterilzing }

The present invention relates to an indoor air ventilation system, and more particularly, filters and sterilizes fine particles such as fine dust, bacteria, and viruses contained in air circulated through a single device, and furthermore, by coagulating fine particles using ultrasonic waves, It can filter effectively to reduce costs while making the indoor space more comfortable, and it continuously sterilizes the filter to remove bacteria and viruses remaining in the filter to effectively prevent various diseases, and it is easy to replace the filter. It relates to an indoor air ventilation system that reduces damage and is easy to maintain and prolongs its lifespan, so that additional costs are further reduced.

In general, when a person breathes for a certain period of time or longer in a certain indoor space that is blocked from outdoor air, the amount of carbon dioxide in the room increases and interferes with breathing. In addition, headaches or fatigue may be caused by substances harmful to the human body, such as chemicals used in indoor building materials, and harmful substances generated by the use of office equipment such as copiers and printers.

Accordingly, there is a need to ventilate the indoor space. A user may open a window to ventilate the room, but a ventilation device may also be used. Such a ventilation device allows indoor and outdoor air to pass through a heat exchanger, thereby reducing a temperature difference between outdoor air and indoor air, thereby making the indoor space comfortable. On the other hand, outdoor air contains pollutants such as yellow dust and fine dust, and fine dust causes various diseases such as bronchi and lungs.

However, since the conventional ventilation device cannot remove fine dust or the like introduced from the outdoors, there is a problem of causing various diseases such as the above. On the other hand, recently, air purifiers are used separately from ventilation devices, but air purification is performed through the air purifier only after air containing fine dust or microplastics is introduced into the room due to ventilation operation, so it has already flowed into the room. The problem of various diseases caused by fine dust or fine plastic cannot be solved. In addition, since the air purifier must be installed separately from the ventilation device, there is a problem in that cost increases.

Korean Registered Patent Publication No. 10-0651861

The present invention is to solve the problems described above, and an object of the present invention is to use a single device to pollutants and bacteria including fine particles such as yellow dust, fine dust, ultrafine dust, microplastics or ultrafine plastics. Filters and sterilizes bacteria and viruses, and uses ultrasonic wave or low frequency to agglomerate microparticles to filter more effectively as the size increases, reducing costs while providing a more comfortable indoor space. Filter and microparticle agglomeration Various diseases can be more effectively prevented by effectively eradicating germs and viruses by sterilizing the entire unit and the case where they are installed with ultraviolet rays, and UV light sources are placed between multiple filters that are spaced apart from each other to effectively sterilize even multiple filters. It can be more easily maintained and replaced to improve the convenience of use, and since indoor air can be discharged without passing through the total heat exchange unit, damage to the total heat exchange unit due to stagnation in the total heat exchange unit is reduced, which makes maintenance easier. The object of the present invention is to provide an indoor air ventilation system in which cost is further reduced and noise is reduced because life span is extended easily.

According to a feature of the present invention, the case body 10 having accommodation spaces (11, 12, 13, 14) formed therein; It is installed inside the case body 10 to divide the accommodating spaces 11, 12, 13, 14 into first to fourth accommodating spaces 11, 12, 13, 14, and the first to fourth accommodating spaces 11, 12, 13, 14. A total heat exchange unit 20 installed to pass indoor and outdoor air introduced into the spaces 11, 12, 13, and 14; It is formed on one front side of the case body 10 to communicate with the first accommodating space 11 of the case main body 10, and indoor air flows into the first accommodating space 11 of the case main body 10. intake port 30; Outdoor air is formed on one rear side of the case body 10 to communicate with the second accommodation space 12 of the case body 10, and outdoor air flows into the second accommodation space 12 of the case body 10. intake port 31; It is formed on the other front side of the case body 10 to communicate with the third accommodating space 13 of the case main body 10, flows into the second accommodating space 12, and passes through the total heat exchange unit 20 to 3 an outdoor air outlet 32 through which the air introduced into the accommodating space 13 is discharged indoors; It is formed on the other rear side of the case body 10 to communicate with the fourth accommodating space 14 of the case main body 10, flows into the first accommodating space 11 and selectively passes through the total heat exchange unit 20. an indoor air outlet 33 through which indoor air introduced into the fourth accommodating space 14 is discharged to the outdoors; an intake fan (40) installed in the third accommodating space (13) of the case body (10) to be connected to the outdoor air outlet (32); an exhaust fan 50 installed in the fourth accommodating space 14 of the case body 10 to be connected to the indoor air exhaust port 33; a filter 60 installed in the accommodating spaces 11, 12, 13, and 14 of the case body 10 to remove contaminants contained in the air introduced into the accommodating spaces 11, 12, 13, and 14; Installed in the accommodating spaces 11, 12, 13, and 14 of the case body 10, contaminants included in the air introduced into the accommodating spaces 11, 12, 13, and 14, the accommodating space of the case body 10 (11, 12, 13, 14) There is provided an indoor air ventilation system comprising a UV light source (70) for sterilizing the inside and the filter (60).

According to another feature of the present invention, the filter 60 is composed of a first filter 61 and a second filter 62, and the filter bracket 21 located at the corner of the total heat exchange unit 20 is attached to each other. It is installed to be spaced apart, and an opening 15 is formed on one surface of the case body 10 to expose the filter 60 to the outside and is closed by the cover 16, and in the middle part of the lower surface of the cover 16 An indoor air ventilation system characterized in that the UV light source 70 is installed to be disposed between the first filter 61 and the second filter 62 is provided.

According to another feature of the present invention, in the case body 10, the air introduced through the indoor air intake port 30 does not pass through the first accommodating space 11 and is located in the fourth accommodating space 14. A flow path 80 is formed at both ends to communicate with one side of the indoor air intake port 30 and the exhaust fan 50 so that it can be moved to (50), and is provided in the indoor air intake port 30 and is provided in the indoor air intake port ( 30) to selectively communicate air introduced into the case body 10 with the first accommodating space 11 or the flow path 80, further comprising a bypass valve 90. is provided.

As described above, according to the present invention, a filter 60 and a UV light source 70 are provided inside the case body 10, which is provided with a total heat exchange unit 20 to exchange heat between indoor and outdoor air, so that the air circulated during ventilation Since it effectively blocks and removes contaminants such as fine dust and microplastics, as well as germs and viruses, it is possible to effectively prevent various diseases while ventilating the indoor air, and to keep the indoor air cleaner and more pleasant. At this time, since the UV light source 70 sterilizes the inside of the case body 10 and the filter 60, it effectively removes even remaining bacteria or viruses, further increasing the effect. In addition, since ventilation can be automatically or manually operated through linkage with weather information, the above effect can be further increased while user convenience is improved.

In addition, the filter 60 is composed of first and second filters 61 and 62 spaced apart from each other, and the filter 60 is exposed to the case body 10 in which the filter 60 is accommodated, and the cover 16 An opening 15 covered by is formed, and the UV light source 70 is positioned between the first and second filters 61 and 62 at the middle portion of the lower surface of the cover 16, and the first and second filters ( 61,62) are all directly sterilized. Accordingly, the filtering effect is improved by using two filters such as the first and second filters 61 and 62, and bacteria propagating on the first and second filters 61 and 62 by the UV light source 70. It is more hygienic and the filtering effect is further improved as viruses and viruses are effectively eradicated. In addition, since the filter 60 is easily drawn out through the opening 15 of the case body 10 without interference by the UV light source 70, the filter 60 can be easily checked, maintained, and replaced, and the case body If only the cover 16 is opened without opening the cover 16, the UV light source 70 can be checked, maintained, and replaced, so management is easy and convenience of use is improved, and the UV light source 70 can be continuously operated. It is more hygienic and the filtering effect is further improved.

On the other hand, the inside of the case body 10 is divided into first to fourth accommodating spaces 11 and 14 by the total heat exchange unit 20, and the indoor air intake port 30 communicates with the first accommodating space 11 and 4 A flow path 80 communicating with one side of the exhaust fan 50 of the accommodating space 14 is formed, and the bypass valve ( 90), indoor air can be discharged directly to the outside without passing through the filter 60 and the total heat exchange unit 20. Accordingly, since the air introduced through the indoor air intake port 30 is not introduced into the first accommodating space 11 at all and is quickly discharged through the fourth accommodating space 14, the air is transferred to the heat exchange unit 20 Since it does not flow in at all, the damage of the total heat exchange unit 20 caused by stagnation in the total heat exchange unit 20 is reduced and the life span is extended, and thus maintenance of the filter 60 and the total heat exchange unit 20 is reduced. It is easy and cost is reduced, and static pressure is lowered according to the driving of the exhaust fan 50 by preventing stagnation in the fourth accommodating space 14, thereby reducing noise.

On the other hand, by aggregating fine particles such as fine dust or fine plastic contained in the circulated air using ultrasonic waves or low frequencies in the fine particle aggregating unit 110 before passing through the filter 60, the size of the fine particles increases and filters Since it is filtered more effectively in (60), the filtration efficiency is increased to more effectively prevent diseases and keep indoor air more comfortable. Even if an expensive filter such as a HEPA filter for filtering fine particles is not used, fine particles can be effectively removed, and thus costs can be effectively reduced.

1 is a view showing an embodiment of an indoor air ventilation system according to the present invention
2 is an enlarged view of the embodiment;
Figure 3 is a perspective view showing the bypass valve and flow path of the embodiment
Figure 4 is a view showing the location of the filter and the UV lamp of the embodiment
5 and 6 are views showing the first operation of the above embodiment.
7 and 8 are views showing a second operation of the above embodiment.

Objects, features and advantages of the present invention described above will become more apparent through the detailed description that follows. Hereinafter, a preferred embodiment of the present invention will be described based on the accompanying drawings.

1 to 8 are views showing an indoor air ventilation system according to an embodiment of the present invention. As shown, the indoor air ventilation system according to an embodiment of the present invention includes a case body 10, a total heat exchange unit 20, an indoor air intake 30, an outdoor air intake 31, and an outdoor air exhaust 32. ), an indoor air exhaust port 33, an intake fan 40, an exhaust fan 50, a filter 60, a UV lamp 70, and a control unit 100.

The case body 10 has accommodation spaces 11 , 12 , 13 , and 14 for accommodating the total heat exchange unit 20 , the intake fan 40 , the exhaust fan 50 , and the like are formed therein. As shown in FIG. 2, the case body 10 may have a rectangular cross section, and on one side thereof, an opening 15 provided at a position aligned with the filter 60 to expose the filter 60 to the outside and the opening 15 A cover 16 covering 15 may be provided.

The total heat exchange unit 20 allows heat exchange between indoor and outdoor air that cross-circulates with each other, and is installed inside the case body 10 to accommodate the housing spaces 11, 12, 13, and 14 of the case body 10 is partitioned into first to fourth accommodating spaces (11, 12, 13, 14). As shown in FIG. 2, the first and fourth accommodating spaces 11 and 14 are diagonally opposite to each other around the total heat exchange unit 20, and the second and third accommodating spaces 12 and 13 are diagonally opposite to each other compartmentalized as possible. At this time, a common partition plate 23 for partitioning may be provided at a corner or apex of the total heat exchange unit 20 .

As is well known, the total heat exchange unit 20 is made of adhesive by stacking single-sided corrugated cardboard formed by bonding corrugated medium and original cardboard at an angle of 90 degrees and gluing, and may be made of synthetic resin or paper material.

As shown in FIG. 2 , the indoor air intake port 30 is formed on one front side of the case body 10 to communicate with the first accommodating space 11 of the case body 10 . Indoor air is introduced into the first accommodating space 11 of the case body 10 through the indoor air intake port 30 .

As shown in FIG. 2 , the outdoor air intake port 31 is formed at one rear side of the case body 10 to communicate with the second accommodating space 12 of the case body 10 . Outdoor air is introduced into the second accommodating space 12 of the case body 10 through the outdoor air intake port 31 .

As shown in FIG. 2 , the outdoor air outlet 32 is formed on the other front side of the case body 10 to communicate with the third accommodation space 13 of the case body 10 . The air introduced into the second accommodating space 12 of the case body 10 through the outdoor air intake vent 32 and passed through the total heat exchange unit 20 and introduced into the third accommodating space 13 is the outdoor air exhaust vent 32 ) is discharged into the room.

As shown in FIG. 2 , the indoor air outlet 33 is formed on the other rear side of the case body 10 to communicate with the fourth accommodating space 14 of the case body 10 . The air introduced into the first accommodating space 11 of the case body 10 through the indoor air intake port 30 and selectively passed through the total heat exchange unit 20 and introduced into the fourth accommodating space 14 is discharged through the indoor air exhaust port. It is discharged to the outdoors through (33).

Meanwhile, as shown in FIG. 2 , a damper 4 may be further provided to open and close the outdoor air intake port 31 and the indoor air exhaust port 33 facing the outdoors. As is well known, the damper 4 may be formed in various forms to open and close the outdoor air intake port 31 and the indoor air exhaust port 33 by a motor (not shown) controlled by the control unit 100 .

The intake fan 40 is installed in the third accommodating space 13 of the case body 10 to be connected to the outdoor air exhaust port 32, and supplies outdoor air through the outdoor air intake port 31 to the outside air intake port 31 of the case body 10. The air is sucked into the second receiving space (12), passes through the filter (60) and the total heat exchange unit (20), and is supplied indoors through the outdoor air outlet (32).

The exhaust fan 50 is installed in the fourth accommodating space 14 of the case body 10 to be connected to the indoor air exhaust port 33, and supplies indoor air to the inside of the case body 10 through the indoor air intake port 30. It is sucked in and discharged to the outdoors through the indoor air outlet (33) by selectively passing through the filter (60) and the total heat exchange unit (20).

The filter 60 is for removing contaminants such as fine dust contained in the air flowing into the receiving spaces 11, 12, 13, and 14 of the case body 10, and as shown in FIG. It may be detachably coupled to one surface of the total heat exchange unit 20 located in the two accommodation spaces 11 and 12, respectively. Although not shown, the filters 60 are detachably coupled to the upper and lower surfaces of the air supply fan 50, respectively, so that pollutants included in the air introduced into the room can be removed more effectively.

In the indoor air ventilation system according to an embodiment of the present invention, the filter 60 may include a first filter 61 and a second filter 62 . The first filter 61 is a pre-filter for filtering particles having a relatively large diameter, and the second filter 62 may be composed of a medium filter or a HEPA filter for filtering particles having a relatively smaller diameter than the first filter 61. can In this way, since the first and second filters 61 and 62 are mounted together, particles of various sizes can be effectively filtered without stagnation. As shown in FIG. 2 , a filter bracket 21 for mounting the first filter 61 and the second filter 62 may be provided at a corner of the total heat exchange unit 20 . At this time, as shown in FIG. 4, the first filter 61 and the second filter 62 mounted on the filter bracket 21 are aligned with the opening 15 of the case body 10, and the first filter 61 and the second filter 62 are aligned. 2 The filter 62 can be easily replaced through the opening 15.

The UV light source 70 is installed in the accommodating spaces 11, 12, 13, and 14 of the case body 10, and the contaminants contained in the air supplied to the accommodating spaces 11, 12, 13, and 14 and the case body The inside of (10) and the filter (60) are sterilized. As such a UV light source 70, it is preferable to use UV-C in a wavelength range of 100 to 280 nm with excellent sterilization effect. By irradiating such UV-C light, germs or viruses proliferating inside the case body 10, the first filter 61 and the second filter 62 can be effectively eradicated, so the case body 10, Since the first filter 61 and the second filter 62 maintain a cleaner state, the air cleaning effect is further improved.

In the indoor air ventilation system according to an embodiment of the present invention, the UV light source 70 may be positioned between the first filter 61 and the second filter 62. As shown in FIG. 4, it can be installed on the cover 16 covering the opening 15 of the case body 10, and the UV light source 70 is made of UV LED and mounted on the PCB 71, and the PCB 71 ) may be installed in the middle of the lower surface of the cover 16. Accordingly, while the first filter 61 and the second filter 62 are sterilized by the UV light source 70, they are not interfered with by the UV light source 70, so replacement is easy. In addition, the UV light source 70 can be maintained and replaced by removing only the cover 16 without touching the inside of the case body 10 and the filter 60 .

As shown in FIG. 1 , the control unit 100 may control the operation of the intake fan 40 and the exhaust fan 50 according to weather information provided from the Korea Meteorological Administration. The control unit 100 is installed in the case body 10 so that weather information from the Korea Meteorological Administration can be wirelessly provided through the router 3. Weather information is updated at regular intervals to maintain the latest information, and a common Wi-Fi module is installed in the control unit 100 so that weather information can be provided wirelessly through the indoor router 3.

Meanwhile, the intake fan 40 and the exhaust fan 50 are not only automatically controlled by the control unit 100 according to updated weather information, but also manually controlled through an app such as the mobile phone 1 or a program on the computer 2. It is desirable to be configured to do so. At this time, the user can check the weather information through the mobile phone 1 or the computer 2 and at the same time monitor the indoor ventilation condition, so that the user can perform appropriate control according to the situation even outside.

The indoor air ventilation system according to an embodiment of the present invention may further include a flow path 80 and a bypass valve 90. 3 and 8, the passage 80 is formed inside the case body 10, and the air introduced through the indoor air intake port 30 does not pass through the first accommodation space 11 but the fourth accommodation space. It is to be moved to the exhaust fan 50 located at (14), and both ends are formed to communicate with one side of the indoor air intake port 30 and the exhaust fan 50, respectively.

The bypass valve 90 selectively discharges the air introduced through the indoor air intake port 30 into the first accommodating space 11 or the flow path 80, and is mounted on the indoor air intake port 30. A valve housing 91 having a first through hole 92 and a second through hole 93 communicating with the first accommodating space 11 and the flow path 80, respectively, and the first through hole 92 in the valve housing 91 ) and a first rotary plate 94 and a second rotary plate 95 for opening and closing the second through hole 93, and rotating means 96 and 97 for rotating the first and second rotary plates 94 and 95 can be configured. The rotating means 96 and 97 may be composed of two step motors to individually drive the first rotating plate 94 and the second rotating plate 95, respectively.

The operation of the indoor air ventilation system according to an embodiment of the present invention configured as above will be described as follows.

In clean weather, as shown in FIGS. 5 and 6, the second rotary plate 95 of the bypass valve 90 blocks the second through hole 93 to close the inlet of the flow path 80, and the first rotary plate 94 The first through hole 92 is opened to open the entrance of the first accommodating space 11 . Accordingly, after indoor air is introduced into the first accommodating space 11 through the indoor air intake port 30, the filter 60, the UV light source 70, the total heat exchange unit 20, and the fourth accommodating space 14 ) through the indoor air outlet (33), and outdoor air is introduced into the second accommodating space (12) through the outdoor air inlet (31), and then the filter (60), the total heat exchange unit (20), and the UV light source 70, the filter 60, and the third accommodating space 13, and supplied to the room through the outdoor air exhaust port 32. Accordingly, contaminants such as fine dust and bacteria or viruses contained in the circulated air are filtered, sterilized, and removed, thereby providing a more comfortable indoor space by continuously introducing cleaner air while preventing various diseases. can

On the other hand, when ventilation without heat exchange is required, the first rotating plate 94 of the bypass valve 90 blocks the first through hole 92 to close the entrance of the first accommodating space 11, as shown in FIGS. 7 and 8. And the second rotary plate 95 opens the second through hole 93 to open the inlet of the flow path 80. Accordingly, indoor air is directly moved to the fourth accommodation space 14 without passing through the first accommodation space 11 through the indoor air intake port 30 and the flow path 80, and is discharged through the indoor air outlet by the exhaust fan 50. It is discharged to the outdoors through (33). Outdoor air flows into the room through the total heat exchange unit (20). In this way, since indoor air is discharged to the outside without passing through the filter 60, the UV light source 70, and the total heat exchange unit 20, the lifespan of the filter 60 is increased and the damage of the total heat exchange unit 20 is reduced. Since this is extended, maintenance of the filter 60 and the total heat exchange unit 20 is easy and cost is reduced, and noise is reduced because the static pressure according to the driving of the exhaust fan 50 is lowered.

The indoor air ventilation system according to an embodiment of the present invention may further include a fine particle aggregator 110 . The fine particle aggregation unit 110 may be provided in the first accommodating space 11 or the second accommodating space 12 of the case body 10, and the indoor air intake 30 or the outdoor air intake 31 Filter 60 by condensing fine particles such as fine dust contained in the air before passing through the filter 60 after being introduced into the first accommodating space 11 or the second accommodating space 12 of the case body 10 through the filter 60. allows for more effective filtration. As well known, the fine particle aggregation unit 110 may be configured to agglomerate the fine particles by generating ultrasonic waves or low frequencies.

As shown in FIG. 2 , the fine particle aggregation unit 110 is installed in the second accommodating space 12 of the case body 10, but may also be installed in the first accommodating space 11. Accordingly, fine particles such as fine dust or fine plastic contained in the outdoor air introduced through the outdoor air intake port 31 are agglomerated by the ultrasonic waves or low frequencies generated by the fine particle aggregating unit 110 and increase in size. , is filtered more effectively in the first filter 61 located in the second accommodating space 12 of the case body 10. That is, the fine particle aggregation unit 110 is located in front of the filter 60 and increases the size by aggregating the fine particles contained in the external air before the air introduced from the outside passes through the filter 60, thereby increasing the size of the filter 60. ) to be filtered more effectively. Accordingly, fine particles can be effectively filtered with only the first filter 61, which is a cheaper pre-filter than a HEPA filter, thereby reducing costs. Of course, by disposing the second filter 62, which is a medium filter or a HEPA filter, away from the first filter 61, it is possible to more effectively filter even fine particle aggregates not filtered out by the first filter 61.

The present invention described above is not limited by the foregoing embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within a range that does not deviate from the technical spirit of the present invention. will be clear to those who have knowledge of

10: case body 11, 112, 13, 14: accommodation space
15: opening 16: cover
20: total heat exchange unit 30: indoor air intake
31: outdoor air intake 32: outdoor air exhaust
33: indoor air exhaust port 40: intake fan
50: exhaust fan 60: filter
70: UV light source 80: Euro
90: bypass valve 100: control unit
110: fine particle aggregation unit

Claims (3)

A case body 10 having accommodation spaces 11, 12, 13, 14 formed therein and having an opening 15 formed on one side thereof;
It is installed inside the case body 10 to divide the accommodating spaces 11, 12, 13, 14 into first to fourth accommodating spaces 11, 12, 13, 14, and the first to fourth accommodating spaces 11, 12, 13, 14. A total heat exchange unit 20 installed to pass indoor and outdoor air introduced into the spaces 11, 12, 13, and 14;
It is formed on one front side of the case body 10 to communicate with the first accommodating space 11 of the case main body 10, and indoor air flows into the first accommodating space 11 of the case main body 10. intake port 30;
Outdoor air is formed on one rear side of the case body 10 to communicate with the second accommodation space 12 of the case body 10, and outdoor air flows into the second accommodation space 12 of the case body 10. intake port 31;
It is formed on the other front side of the case body 10 to communicate with the third accommodating space 13 of the case main body 10, flows into the second accommodating space 12, and passes through the total heat exchange unit 20 to 3 an outdoor air outlet 32 through which the air introduced into the accommodating space 13 is discharged indoors;
It is formed on the other rear side of the case body 10 to communicate with the fourth accommodating space 14 of the case main body 10, flows into the first accommodating space 11 and selectively passes through the total heat exchange unit 20. an indoor air outlet 33 through which indoor air introduced into the fourth accommodating space 14 is discharged to the outdoors;
an intake fan (40) installed in the third accommodating space (13) of the case body (10) to be connected to the outdoor air outlet (32);
an exhaust fan 50 installed in the fourth accommodating space 14 of the case body 10 to be connected to the indoor air exhaust port 33;
A filter installed in the receiving spaces 11, 12, 13, and 14 of the case body 10 and positioned at the edge of the total heat exchange unit 20 to be exposed to the outside through the opening 15 of the case body 10 a first filter 61 and a second filter 62 installed on the bracket 21 to be spaced apart from each other to remove contaminants contained in the air introduced into the receiving spaces 11, 12, 13, and 14;
a cover 16 closing the opening 15 of the case body 10;
It is provided in the middle of the lower surface of the cover 16 and is disposed between the first filter 61 and the second filter 62 to flow into the receiving spaces 11, 12, 13, and 14 of the case body 10. A UV light source 70 that sterilizes the contaminants contained in the air, the inside of the receiving spaces 11, 12, 13, 14 of the case body 10, the first filter 61 and the second filter 62; Indoor air balancing ventilation system, characterized in that.
delete According to claim 1, the case body (10) has an exhaust fan (50) positioned in the fourth accommodation space (14) without passing through the first accommodation space (11), the air introduced through the indoor air intake (30) A flow path 80 is formed so that both ends communicate with one side of the indoor air intake port 30 and the exhaust fan 50, respectively, and is provided in the indoor air intake port 30 to move the indoor air intake port 30 to the indoor air intake port 30. An indoor air balancing ventilation system further comprising a bypass valve (90) for selectively communicating air introduced into the case body (10) with the first accommodating space (11) or the flow path (80).

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