KR20230086860A - Air conditioner in door unit with duct of both sides - Google Patents

Abstract

An indoor air conditioner with air passages on both sides according to the present invention includes an outdoor air intake unit through which external air is sucked, an outdoor air intake path unit communicating with the outdoor air intake unit, an air supply unit for supplying air to the room, and recovering air circulated through the room. a housing having a return air intake part, a return air passage part communicating with the return air intake part, and an exhaust part discharging air to the outdoors; a door mounted to the housing so as to be able to open and close; a heat exchange element disposed inside the housing and exchanging heat between outside air introduced from the outside air intake passage and indoor air recovered from the return air passage; a HEPA filter disposed inside the housing and filtering air passing through the heat exchange element; an evaporator disposed inside the housing and absorbing heat from the air passing through the HEPA filter; an air supply fan unit disposed inside the housing, communicating with the air supply unit, and flowing air passing through the evaporator into the air supply unit; and an exhaust fan disposed inside the housing, communicating with the exhaust unit, and flowing air passing through the heat exchange element to the exhaust unit. It can be replaced very easily.

Description

Double-side air passage type air conditioner indoor unit {AIR CONDITIONER IN DOOR UNIT WITH DUCT OF BOTH SIDES}

The present invention relates to an indoor air conditioner with air passages on both sides, and more particularly, to significantly reduce the static pressure loss of a HEPA filter in apartments, officetels, detached houses, offices, etc., supply clean air with sufficient air volume to the room, and cool and heat indoors. It relates to a double-sided air passage type air conditioner indoor unit capable of

In a conventional ventilation unit, since an air supply fan and an exhaust fan are installed on both sides of a heat exchange element, indoor air is exhausted through the heat exchange element, and outdoor air is supplied to the room through the heat exchange element.

Since the ventilation unit is installed on the ceiling, when replacing a heat exchanger element or filter, it is not easy to replace the heat exchanger unless you are a professional technician. Therefore, there is a problem in that the heat exchange element or filter is not replaced even though it is only necessary to replace it once a year. Therefore, there is a need to improve this.

The background art of the present invention is disclosed in Republic of Korea Utility Model Registration No. 20-0406144 (registered on January 9, 2006, title of design: total heat exchange type ventilator).

The present invention was created to solve the above problems, and an object of the present invention is to significantly reduce the static pressure loss of a HEPA filter in an apartment, officetel, detached house, office, etc., and to supply clean air with sufficient air volume to the room While having the function, it is possible to easily replace the heat exchanger or HEPA filter, which is a disadvantage of the ceiling-mounted ventilation unit, by opening the door horizontally at eye level, and by installing an additional heating and cooling coil (evaporator), air passages on both sides with cooling and heating functions An air conditioner indoor unit is provided.

An indoor air conditioner with air passages on both sides according to the present invention includes: an outdoor air intake unit through which external air is sucked, an outdoor air intake passage unit communicating with the outdoor air intake unit, an air supply unit for supplying air to the room, and air circulating through the room. a housing having a return air intake unit for collecting air, a return air passage unit communicating with the return air intake unit, and an exhaust unit for discharging air to the outdoors; a door mounted to the housing to be opened and closed horizontally; a heat exchange element disposed inside the housing and exchanging heat between outside air introduced from the outside air intake passage and indoor air recovered from the return air passage; a HEPA filter disposed inside the housing and filtering air passing through the heat exchange element; an evaporator disposed inside the housing and evaporating the refrigerant by absorbing heat from the air passing through the HEPA filter; an air supply fan unit disposed inside the housing, communicating with the air supply unit, and flowing air passing through the evaporator into the air supply unit; and an exhaust fan part disposed inside the housing, in communication with the exhaust part, and configured to flow air passing through the heat exchange element to the exhaust part, the heat exchange element disposed inside the housing when the door is opened, and It is characterized in that the replacement of the HEPA filter is possible.

In the present invention, the HEPA filter is characterized in that it is disposed in a “W” shape.

In the present invention, it is characterized in that it further comprises a deodorizing filter disposed between the heat exchange element and the HEPA filter to remove odors from the air.

In the present invention, the housing is provided with a bypass damper installed to be able to open and close between the heat exchange element and the deodorization filter, and as the bypass damper is opened and closed, the return air recovered from the room is directed toward the deodorization filter or the heat exchange element. It is characterized in that the flow of is controlled.

In the present invention, it is characterized in that at least one or more of a humidifier, a UV sterilization lamp, a plasma sterilization and deodorization device, a dust collector, a carbon deodorization filter, and an oxygen generator are installed in the air supply unit.

In the present invention, the housing is characterized in that it can be installed on the wall.

In the present invention, when the outdoor unit of the air conditioner is not operating, it is characterized in that it can be operated while maintaining only the air cleaning and heat recovery functions.

In the present invention, the housing is characterized in that it can be installed in a stand type on an indoor floor or indoor ceiling of a building.

When the indoor unit of the air passage type air conditioner on both sides according to the present invention is applied, the capacity of the HEPA filter can be maximized to reduce static pressure loss, and since clean air can be supplied to the room with sufficient air volume, the indoor air cleaning function can be remarkably improved. .

In addition, according to the present invention, heat exchange between air sucked in from the outside and air circulated in the room can be performed while air flows in a cross-current or counter-current in the heat exchange element within the housing.

In addition, according to the present invention, the door is mounted on the housing so as to be openable and openable like opening the door of a refrigerator, so that the heat exchange element and the HEPA filter installed inside the housing can be easily replaced horizontally at eye level by opening the door.

1 is a perspective view schematically illustrating an indoor unit of an air conditioner with air passages on both sides according to an embodiment of the present invention from one direction.
FIG. 2 is a perspective view schematically illustrating an indoor unit of an air-pass type air conditioner on both sides according to an embodiment of the present invention from another direction.
3 is a front view schematically illustrating an indoor unit of an air conditioner with air passages on both sides according to an embodiment of the present invention.
FIG. 4 is a partially enlarged view schematically illustrating a heat exchange element and its surroundings in FIG. 3 .
5 is a plan view schematically illustrating an indoor unit of an air-pass type air conditioner on both sides according to an embodiment of the present invention.
6 is a side view schematically illustrating an indoor unit of an air conditioner with air passages on both sides according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an indoor unit for air passage type air conditioner on both sides according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, definitions of these terms will have to be made based on the content throughout this specification.

1 is a perspective view schematically illustrating an indoor unit of an air passage type air conditioner on both sides according to an embodiment of the present invention from one direction, and FIG. 2 is a perspective view schematically showing an indoor unit of an air passage type air conditioner on both sides according to an embodiment of the present invention from another direction. FIG. 3 is a schematic front view of an indoor unit of air passage type air conditioner on both sides according to an embodiment of the present invention, FIG. 4 is a partially enlarged view schematically showing a heat exchange element and its surroundings in FIG. 3, and FIG. It is a plan view schematically showing a double-sided air passage type air conditioner indoor unit according to an embodiment of the present invention, and FIG. 6 is a side view schematically showing a double side air passage type air conditioner indoor unit according to an embodiment of the present invention.

Referring to FIGS. 1 to 6, the indoor air conditioner with air passages on both sides according to an embodiment of the present invention includes a housing 100, a door 200, a heat exchange element 300, a HEPA filter 400, and an evaporator 450. , an air supply fan unit 500 and an exhaust fan unit 600.

A door 200 is mounted on one side of the housing 100 to be able to open and close, and a heat exchange element 300, a HEPA filter 400, an evaporator 450, a deodorization filter 470, an air supply fan unit 500, Exhaust fan unit 600 and the like are accommodated. The housing 100 may be installed in a stand type on the indoor floor of a building.

When the door 200 is opened like opening a refrigerator door, a user can easily replace the heat exchange element 300 or the HEPA filter 400 mounted inside the housing 100. In addition, the deodorization filter 470 can also be replaced when the door 200 is opened.

The housing 100 includes an external air intake unit 110, an air supply unit 120, a return air intake unit 130, and an exhaust unit 140 on the upper side.

The outdoor air suction unit 110 is a passage through which external air is sucked, and the air supply unit 120 is a passage through which air is supplied to the room. The air circulated indoors is recovered through the return air suction unit 130, and the air is discharged to the outdoors through the exhaust unit 140.

The air supply unit 120 communicates with the air supply fan unit 500 and supplies air into the room by the operation of the air supply fan unit 500 . The exhaust unit 140 communicates with the exhaust fan unit 600 and discharges air to the outdoors by the operation of the exhaust fan unit 600 .

In the present invention, the air supply unit 120 may be equipped with at least one of a humidifier, a UV sterilization lamp, a plasma sterilization and deodorization device, a dust collector, a carbon deodorization filter, and an oxygen generator.

A UV sterilization lamp (Ultraviolet Ray Lamp) can sterilize bacteria in the air supply unit 120 with ultraviolet rays. The UV sterilization lamp can sterilize germs while adjusting the operation time and irradiation amount.

The plasma sterilization & deodorization device can sterilize bacteria in the air supply unit 120 and deodorize by using plasma ions.

The dust collector is a device that sucks dust or dust in the air supply unit 120 . The carbon deodorizing filter is installed in the air supply unit 120 and can remove odors from the air flowing in the air supply unit 120 as carbon absorbs odors.

The oxygen generator is a device that removes pollutants and nitrogen from the air flowing in the air supply unit 120 and highly enriches oxygen.

In the present invention, the housing 100 may further include a heat exchange bracket 150, a first chamber unit 160, a second chamber unit 170, a third chamber unit 180, and a fourth chamber unit 190. there is.

Since the heat exchange bracket 150 is formed in a hollow diamond shape at the lower center of the housing 100, it can accommodate and support the heat exchange element 300. The heat exchange bracket 150 is formed to support a corner portion of the heat exchange element 300 so that the heat exchange element 300 can be easily attached or detached.

The first chamber unit 160 to the fourth chamber unit 190 are disposed at positions corresponding to the four surfaces of the heat exchange element 300 . In the drawing of the present invention, the heat exchange element 300 is formed in a rectangular column shape, but is not limited thereto. For example, the heat exchange element 300 may be a counter flow type heat exchange element formed in a hexagonal column.

The first chamber part 160 communicates with the first surface part 151 of the heat exchange bracket 150 and the outside air intake passage part 112 disposed in the vertical direction of the housing 100 . The first surface portion 151 is formed below the heat exchange bracket 150 in FIG. 4 .

The second chamber unit 170 communicates with the second surface unit 153 of the heat exchange bracket 150 and the air supply fan unit 500 . The second surface portion 153 is formed on the left side of the heat exchange bracket 150 in FIG. 4 .

The third chamber part 180 communicates with the third surface part 155 of the heat exchange bracket 150 and the return air passage part 111 arranged in the vertical direction of the housing 100. The third surface portion 155 is formed above the heat exchange bracket 150 in FIG. 4 .

The fourth chamber unit 190 communicates with the fourth surface unit 157 of the heat exchange bracket 150 and the exhaust fan unit 600 . The fourth surface portion 157 is formed on the right side of the heat exchange bracket 150 in FIG. 4 .

In the present invention, the first surface portion 151, the second surface portion 153, the third surface portion 155, and the fourth surface portion 157 are disposed to support the corner portion of the heat exchange element 300, respectively. As such, the heat exchange bracket 150 contacts the heat exchange element 300 only at the corner and supports it while minimizing the contact area, thereby improving air intake and outflow efficiency through the heat exchange element 300 .

In the present invention, the housing 100 further includes a bypass damper 159.

The bypass damper 159 is rotatably installed on the blocking wall 480 . The bypass damper 159 is installed between the heat exchange element 300 and the deodorizing filter 470 in the housing 100 so as to be able to open and close.

The bypass damper 159 can control the flow of air toward the deodorization filter 470 or the heat exchange element 300 while being opened and closed. The amount of air flowing through the heat exchange element 300 or the deodorization filter 470 or the HEPA filter 400 can be adjusted according to the rotational angle for opening and closing the bypass damper 159 .

That is, when the bypass damper 159 is opened, the air sucked into the housing 100 through the return air intake unit 130 flows toward the deodorization filter 470 and the HEPA filter 400, and toward the heat exchange element 300. it won't flow Conversely, when the bypass damper 159 is closed, the air sucked into the housing 100 through the return air intake 130 is blocked from flowing toward the deodorizing filter 470 and flows only toward the heat exchange element 300.

In this way, as the bypass damper 159 is operated to open, the air sucked through the return air suction unit 130 may be recirculated while being supplied to the room again in addition to being exhausted to the outside.

The recirculated air is filtered by the deodorization filter 470 and the HEPA filter 400 while passing through the inside of the housing 100 . This allows clean air to be supplied into the room, rather than simply recirculating indoor air.

In addition, while the opening angle of the bypass damper 159 is adjusted, the air volume of the supplied air can be adjusted. As the bypass damper 159 is opened, the amount of ventilation can be reduced and the amount of indoor air cleaning can be further increased.

In the present invention, a plurality of fixing parts 800 are mounted on the upper side of the housing 100 .

One side (upper side in FIG. 1 ) of the fixing part 800 is fixed to a ceiling, wall, existing hanger, etc., and the other side (lower side in FIG. 1 ) is mounted on the upper side of the housing 100 . The housing 100 can be stably maintained in a fixed state indoors by the plurality of fixing parts 800 mounted on the upper side. Therefore, the indoor unit of the air passage type air conditioner on both sides according to the present invention can be easily installed in an existing facility, so that convenience of use can be promoted.

In the present invention, the housing 100 may be fixed to a wall and installed in a wall-hung type. In addition, the housing 100 may be installed in a stand-like manner on the ceiling while hanging from the ceiling by a hanger or the like.

Outside air (outside air) introduced through the outside air intake unit 110 passes through the first chamber unit 160 via the outside air intake passage unit 112 of the housing 100 . Thereafter, the external air passes through the heat exchange element 300 and flows into the third chamber unit 180 .

Air circulated in the room is introduced into the housing 100 through the return air suction unit 130 . Then, the air circulated in the room passes through the second chamber part 170 via the return air passage part 111 of the housing 100 .

After the air circulated in the room reaches the second chamber unit 170, the flow direction may be adjusted by opening and closing the bypass damper 159.

When the bypass damper 159 is operated to open, the air circulated in the room may pass through the deodorization filter 470 and the HEPA filter 400 and then be recirculated back into the room. When the bypass damper 159 is closed, the air circulated in the room flows into the fourth chamber 190 through the heat exchange element 300 and then is exhausted to the outside through the outside air intake passage 112 .

In the process of exhausting the air circulated in the room to the outside through the heat exchange element 300, heat exchange is performed between the air circulated in the room and the air sucked in from the outside. Therefore, it is possible to recover heat from indoor air and outdoor air.

The door 200 is mounted on one side of the housing 100 to be able to open and close. The door 200 is rotatably coupled to one side of the housing 100 by a hinge 251 .

According to the present invention, the double-sided air passage type air conditioner indoor unit has a housing 100 that can be opened and closed by a door 200, and is disposed downward from the ceiling by using a dead space in a multipurpose room, a veranda room, and an outdoor unit room. By opening and closing the housing 100, it is possible to easily replace the heat exchange element 300, the HEPA filter 400, or the auxiliary filter 700 disposed in the housing 100.

A handle 240 is mounted on the front of the door 200 . A user can hold the handle 240 and easily open or close the door 200 from the housing 100 .

The door 200 is provided with a hook 250 on the opposite side where the hinge 251 is installed, and the door 200 and the housing 100 can be closed by the hook 250 .

The cicada ring 250 is shaped like a ring and is caught on the housing 100 to act as a lock. One side of the door 200 is detachably coupled to the housing 100 by the cicada hook 250 . A spring is provided in the cicada hook 250, and pressure is provided in a locked state by the elastic force of the spring, thereby preventing the door 200 from being opened.

The heat exchange element 300 heat-exchanges the outside air introduced through the outside air intake passage 112 and the indoor air recovered from the return air intake unit 130 . The heat exchanging element 300 is formed in a rhombus-shaped column so as to be mounted on the heat exchanging bracket 150 . The heat exchange element 300 is detachably mounted on the heat exchange bracket 150.

In the present invention, the heat exchange element 300 includes a heat exchange element handle 310. The user can easily separate the heat exchange element 300 from the heat exchange bracket 150 by holding the handle 310 of the heat exchange element and sliding and pulling out the heat exchange element 300 .

The user may replace the heat exchange element 300 by inserting the new heat exchange element 300 or the repaired heat exchange element 300 into the heat exchange bracket 150 in the direction opposite to the drawing direction.

The heat exchange element 300 has a flow path through which air flows from the first chamber unit 160 to the third chamber unit 180 and air flows from the second chamber unit 170 to the fourth chamber unit 190 therein. A flow path is formed. The flow path is arranged so that the air flows in a counter flow. Cross Flow is arranged to flow (see FIG. 4).

The heat exchange element 300 is formed in a rectangular shape in which external air sucked from the outside air intake passage 112 and indoor air recovered from the return air intake 130 cross-flow. The heat exchange element 300 may be formed in a rectangular shape to facilitate manufacturing.

Alternatively, in the present invention, the heat exchange element 300 may be formed in a hexagonal shape (honeycomb shape) in which external air sucked from the outside air intake passage 112 and indoor air recovered from the return air intake 130 flow in opposite directions. there is. The heat recovery efficiency can be further improved by using the counter flow type honeycomb heat exchange element 300 .

The HEPA filter 400 filters air that has passed through the heat exchange element 300 . The HEPA filter 400 is mounted on the HEPA filter bracket 171 disposed in the third chamber unit 180 to filter air passing through the heat exchange element 300 .

The HEPA filter 400 is detachably mounted on the HEPA filter bracket 171 of the third chamber unit 180. The user grabs the HEPA filter 400, slides it, pulls it out, and separates it from the HEPA filter bracket 171 of the third chamber unit 180. The user can replace the HEPA filter 400 by inserting a new HEPA filter 400 or a cleaned HEPA filter 400 into the HEPA filter bracket 171 in the direction opposite to the drawing-out direction.

The HEPA filter 400 is a type of high-performance filter for removing radioactive dust and aerosols, and can remove about 99.97% of particles with a diameter of 0.3 μ. In the present invention, the HEPA filter 400 is a lozenge-shaped pillar that can sufficiently remove and supply foreign substances before discharging air into the room.

The HEPA filter 400 may be made of glass fibers having a diameter of 1 to 10 μm or less. In the present invention, the HEPA filter 400 may further include a medium filter as well as a HEPA filter (High Efficiency Particulate Air Filter).

The medium filter is placed in front of the HEPA filter. That is, the air sucked into the third chamber unit 180 passes through the HEPA filter 400, and is specifically filtered through the HEPA filter after passing through the medium filter. The medium filter is a coarser filter than the above-mentioned HEPA filter.

The HEPA filter 400 is arranged in a “W” shape to maximize the air flow rate. The HEPA filter 400 is supported by HEPA filter brackets 410 installed in the housing 100 in a triangle shape and an inverted triangle shape. In the present invention, a combination of four HEPA filters 400 is arranged in a W shape. The HEPA filter 400 is disposed in a W-shape to increase the contact area with air, thereby effectively filtering air within the confined housing 100 .

The indoor unit of air passage type air conditioner on both sides according to the present invention further includes a deodorizing filter 470. The deodorization filter 470 is disposed between the heat exchange element 300 and the HEPA filter 400 to remove odors from the air.

The deodorizing filter 470 is made of a carbon filter. The deodorization filter 470 made of a carbon filter absorbs odors in the air with carbon (activated carbon) to prevent odors from being transmitted to the room.

The evaporator 450 absorbs heat from the air passing through the HEPA filter 400 . Heat is exchanged between the refrigerant in the evaporator 450 and the air passing through the HEPA filter 400, and heat is absorbed by liquid evaporation.

Since the evaporator 450 absorbs heat from the air that has passed through the HEPA filter 400, it is possible to reduce heat loss and improve indoor cooling and heating performance.

A drain pan 455 accommodating liquid generated by heat absorbed by the evaporator 450 is installed below the evaporator 450 . The drain pan 455 is formed in the form of a wide tray disposed below the evaporator 450 to contain liquid generated in the evaporator 450 and prevent it from falling into the housing 100 . Liquid collected in the drain pan 455 may be discharged to the outside of the housing 100 .

The air supply fan unit 500 is disposed on the upper side (of the housing 100) in communication with the air supply unit 120, and flows the air passing through the evaporator 450 to the air supply unit 120. The air supply fan unit 500 is HEPA The air passing through the filter 400 and the evaporator 450 is sucked in, and the filtered air is supplied to the room through the air supply unit 120 .

The exhaust fan unit 600 is disposed on the upper side of the housing 100 to communicate with the exhaust unit 140 and allows air passing through the heat exchange element 300 to flow to the exhaust unit 140 . The exhaust fan unit 600 sucks in air that has passed through the heat exchange element 300 and discharges the air to the outdoors through the exhaust unit 140 .

The indoor air conditioner with air passages on both sides according to the present invention further includes an auxiliary filter (700). The auxiliary filter 700 is disposed in the auxiliary filter accommodating part 161 of the first chamber part 160, filters external air sucked in from the outside air intake passage part 112, and provides it to the heat exchange element 300.

The auxiliary filter accommodating part 161 is disposed on the side of the first surface part 151 of the heat exchange bracket 150 . Accordingly, air sucked into the first chamber unit 160 through the outside air intake passage unit 112 may be filtered through the auxiliary filter 700 and introduced into the heat exchange element 300 . That is, large foreign substances are removed through the auxiliary filter 700, thereby reducing the load of the heat exchange element 300 and the HEPA filter 400 and extending their lifespan.

The auxiliary filter accommodating portion 161 has a 'c' shape in cross section so as to support the corner of the auxiliary filter 700 . The auxiliary filter accommodating part 161 supports both sides of the auxiliary filter 700 so that it can be easily attached or detached.

The auxiliary filter 700 is detachably mounted in the auxiliary filter accommodating part 161 of the first chamber part 160 . The user grabs the auxiliary filter 700, slides it, pulls it out, and separates it from the auxiliary filter accommodating part 161 of the first chamber part 160. The user can replace the auxiliary filter 700 by inserting a new auxiliary filter 700 or a cleaned auxiliary filter 700 into the auxiliary filter accommodating part 161 of the first chamber part 160 in the opposite direction to the withdrawal direction. can

The indoor unit of the air passage type air conditioner on both sides according to the present invention can be operated while maintaining only air cleaning and heat recovery functions when the outdoor unit (not shown) is not in operation. The indoor unit according to the present invention is connected to an outdoor unit installed outside the room. The outdoor unit sends hot air generated when the indoor unit is operating to the outdoors.

According to the indoor air conditioner with air passages on both sides according to the present invention, the capacity of the HEPA filter is increased to reduce static pressure loss, and clean air can be supplied to the room with a sufficient air volume, thereby improving the indoor air cleaning function.

In addition, in the present invention, it is possible to improve the cooling and heating performance of the room by absorbing heat from the air passing through the HEPA filter.

In addition, according to the present invention, heat exchange between air sucked in from the outside and air circulated in the room can be performed while air flows in a cross-current or counter-current in the heat exchange element within the housing.

In addition, according to the present invention, the door is mounted on the housing so as to be able to be opened and closed like opening the door of a refrigerator, so that the heat exchange element and the HEPA filter installed inside the housing can be easily replaced by opening the door.

Although the present invention has been described with reference to an embodiment shown in the drawings, this is merely exemplary, and those skilled in the art can make various modifications and equivalent other embodiments therefrom. will understand Therefore, the true technical protection scope of the present invention should be determined by the claims below.

100: housing 110: outside air intake
111: outside air intake passage 112: return air passage
120: air supply unit 130: return air intake unit
140: exhaust unit 150: heat exchange bracket
151: first surface portion 153: second surface portion
155: third surface portion 157: fourth surface portion
159: bypass damper 160: first chamber part
161: auxiliary filter receiving part 170: second chamber part
171: HEPA filter bracket 180: third chamber unit
190: fourth chamber unit 200: door
300: heat exchange element 400: HEPA filter
410: HEPA filter bracket 450: evaporator
455: evaporator bracket 470: deodorization filter
475: deodorization filter bracket 480: barrier wall
500: air supply fan unit 600: exhaust fan unit
700: auxiliary filter 800: fixing part

Claims (8)

An outdoor air intake unit for sucking in outside air, an outdoor air intake passage unit communicating with the outdoor air intake unit, an air supply unit for supplying air into the room, a return air intake unit for recovering the air circulating in the room, and the return air a housing having a return air passage part communicating with the suction part and an exhaust part discharging air to the outside;
a door mounted to the housing to be opened and closed;
a heat exchange element disposed inside the housing and exchanging heat between outside air introduced from the outside air intake passage and indoor air recovered from the return air passage;
a HEPA filter disposed inside the housing and filtering air passing through the heat exchange element;
an evaporator disposed inside the housing and absorbing heat from the air passing through the HEPA filter;
an air supply fan unit disposed inside the housing, communicating with the air supply unit, and flowing air passing through the evaporator into the air supply unit; and
An exhaust fan unit disposed inside the housing, communicating with the exhaust unit, and flowing air passing through the heat exchange element to the exhaust unit;
When the door is opened, the heat exchange element disposed inside the housing and the HEPA filter can be replaced.
According to claim 1,
The air passage type air conditioner indoor unit on both sides, characterized in that the HEPA filter is disposed in a "W" shape.
According to claim 1,
The double-side air passage type air conditioner indoor unit characterized in that it further comprises a deodorizing filter disposed between the heat exchange element and the HEPA filter to remove odors from the air.
According to claim 3,
The housing has a bypass damper installed to be able to open and close between the heat exchange element and the deodorization filter,
The double-sided air passage type air conditioner indoor unit, characterized in that the flow of the return air recovered from the room to the deodorizing filter or the heat exchange element is controlled while the bypass damper is opened and closed.
According to claim 1,
The air supply unit is equipped with at least one of a humidifier, a UV sterilization lamp, a plasma sterilization and deodorization device, a dust collector, a carbon deodorization filter, and an oxygen generator.
According to claim 1,
The air-pass type air conditioner indoor unit, characterized in that the housing can be installed on a wall.
According to claim 1,
When the outdoor unit of the air conditioner is not operating, it is characterized in that it can be operated while maintaining only the air purification and heat recovery functions.
According to claim 1,
The double-side air passage type air conditioner indoor unit, characterized in that the housing can be installed on the indoor floor or ceiling of the building in a stand-type manner.

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