KR102283668B1 - Ceiling mounted indoor unit of air conditioner of door type - Google Patents

Abstract

A door-type ceiling mounted air conditioner indoor unit is provided. A door-type ceiling mounted air conditioner indoor unit in accordance with the present invention comprises: a housing including an outside air inlet unit through which outside air is suctioned, an air supply unit which supplies air into an indoor space, a return air unit which recovers air having been circulated in the indoor space, and an air discharge unit which discharges air to the outside; an installed door able to be opened/closed to the housing and includes an outside air inlet channel unit communicating with the outside air inlet unit and a return air channel unit communicating with the return air unit; a heat exchange element exchanging heat between the outside air suctioned from the outside air inlet channel unit and indoor air recovered from the return air channel unit; a HEPA filter filtering air having passed the heat exchange element; an evaporator absorbing heat from air having passed the HEPA filter; an air supply fan unit communicating with the air supply unit and moving air having passed the evaporator to the air supply unit; and an air discharge fan unit communicating with the air discharge unit and moving air having passed the heat exchange element to the air discharge unit, wherein the heat exchange element and the HEPA filter can be replaced by opening the door. The present invention can enhance an indoor air cleaning function.

Description

Door Type Ceiling Hanging Air Conditioner Indoor Unit {CEILING MOUNTED INDOOR UNIT OF AIR CONDITIONER OF DOOR TYPE}

The present invention relates to an indoor unit of a door-type ceiling-mounted air conditioner, and more particularly, it significantly reduces the static pressure loss of the HEPA filter in an apartment, officetel, detached house, office, etc., supplies clean air with sufficient air volume to the room, It relates to an indoor unit of a door-type ceiling-hung air conditioner that can be heated and cooled.

In the ventilation unit of the prior art, an air supply fan and an exhaust fan are installed on both sides of the heat exchange element, so that indoor air is exhausted through the heat exchange element, and outdoor air is designed to be supplied into the room through the heat exchange element.

The ventilation unit is installed on the ceiling and contained in the ceiling, installed on the upper ceiling of the outdoor unit, or installed on the ceiling of the veranda. Otherwise, it is difficult to replace. Therefore, although the heat exchange element and filter must be replaced once a year, there is a problem in that they are left without replacement for a long period of time. Therefore, there is a need to improve it.

The background technology of the present invention is disclosed in Republic of Korea Utility Model Publication No. 20-0406144 (registered on Jan. 2009, 2006, title of design: total heat exchange type ventilation device).

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 the HEPA filter in an apartment, officetel, detached house, office, etc., and to supply clean air with sufficient air volume to the room While equipped with a function, anyone can replace the heat exchanger or HEPA filter, which is a disadvantage of the current ceiling-mounted ventilation unit, by opening the door horizontally at the eye level of a person and installing an additional heating/cooling coil (evaporator). It is to provide a door type ceiling-hung air conditioner indoor unit equipped with a function.

The indoor unit of the door type ceiling-hung air conditioner according to the present invention includes: an outdoor air intake unit for sucking outside air; a housing having a portion; a door mounted on the housing to be openable and openable, the door having an outdoor air intake passage communicating with the outdoor air intake and a return air passage communicating with the return air; a heat exchange element for exchanging heat between the outdoor air sucked in from the outdoor air intake passage and indoor air recovered from the return air passage; a HEPA filter for filtering the air that has passed through the heat exchange element; an evaporator for absorbing heat from the air passing through the HEPA filter; an air supply fan unit communicating with the air supply unit and configured to flow the air passing through the evaporator to the air supply unit; and an exhaust fan unit communicating with the exhaust unit and configured to flow air passing through the heat exchange element to the exhaust unit, wherein the door is opened from the housing to replace the heat exchange element with the HEPA filter.

In the present invention, the HEPA filter is arranged in a “W” shape.

In the present invention, it further includes 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 includes a bypass damper that is openly and closedly installed between the heat exchange element and the deodorization filter, and the bypass damper controls air to flow to the deodorization filter or the heat exchange element while opening and closing.

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

In the present invention, the housing may be installed on a wall.

According to the door type ceiling-hung air conditioner indoor unit according to the present invention, it is possible to increase the capacity of the HEPA filter to reduce the static pressure loss, and to supply clean air to the room with a sufficient air volume, thereby improving the indoor air cleaning function.

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

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

1 is a perspective view schematically showing an indoor unit of a door type ceiling-hung air conditioner in one direction according to an embodiment of the present invention.
2 is a perspective view schematically showing the door type ceiling-hung air conditioner indoor unit in another direction according to an embodiment of the present invention.
3 is a perspective view schematically illustrating a state in which a door is opened from a housing in a door-type ceiling-hung air conditioner indoor unit according to an embodiment of the present invention.
FIG. 4 is a partially enlarged view schematically showing "A" of FIG. 3 .
5 is a perspective view schematically showing that the HEPA filter is drawn out from the housing in the present invention.
6 is a perspective view schematically showing that the heat exchange element is drawn out from the housing in the present invention.
7 is a front view schematically showing an indoor unit of a door type ceiling-hung air conditioner according to an embodiment of the present invention.
FIG. 8 is a partially enlarged view schematically showing "B" of FIG. 7 .
9 is a plan view schematically illustrating an indoor unit of a door-type ceiling-hung air conditioner according to an embodiment of the present invention.
10 is a side view schematically showing an indoor unit of a door type ceiling-hung air conditioner according to an embodiment of the present invention.
11 is a front view schematically illustrating an indoor unit of a door type ceiling mounted air conditioner schematically illustrating an indoor unit of a door type ceiling mounted air conditioner according to another embodiment of the present invention.
12 is a plan view schematically illustrating an indoor unit of a door type ceiling mounted air conditioner schematically illustrating an indoor unit of a door type ceiling mounted air conditioner according to another embodiment of the present invention.
13 is a side view schematically showing a door-type ceiling-hung air conditioner indoor unit schematically showing a door-type ceiling-hung air conditioner indoor unit according to another embodiment of the present invention.

Hereinafter, an embodiment of a door-type ceiling-hung air conditioner indoor unit according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users and operators. Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is a perspective view schematically showing an indoor unit for a door-type ceiling-hung air conditioner according to an embodiment of the present invention in one direction, and FIG. 3 is a perspective view schematically illustrating a state in which the door is opened from the housing in the door type ceiling-hung air conditioner indoor unit according to an embodiment of the present invention, and FIG. 4 is a partial enlarged view schematically showing “A” in FIG. 3 5 is a perspective view schematically showing that the HEPA filter is withdrawn from the housing in the present invention, FIG. 6 is a perspective view schematically showing that the heat exchange element is withdrawn from the housing in the present invention, and FIG. 7 is an embodiment of the present invention It is a front view schematically showing an indoor unit of a door type ceiling hung air conditioner according to an embodiment, FIG. 8 is a partially enlarged view schematically showing “B” of FIG. 7 , and FIG. 9 is a door type ceiling hanger according to an embodiment of the present invention. It is a plan view schematically showing an indoor unit of an air conditioner, FIG. 10 is a side view schematically showing an indoor unit of a door-type ceiling-hung air conditioner according to an embodiment of the present invention, and FIG. 11 is a door-type ceiling-hung indoor unit according to another embodiment of the present invention It is a front view schematically showing an indoor unit of a door type ceiling-hung air conditioner schematically showing, and FIG. 12 is a plan view schematically showing an indoor unit of a door type ceiling-hung air conditioner schematically showing an indoor unit of a door type ceiling-hung air conditioner according to another embodiment of the present invention, FIG. 13 is a side view schematically illustrating an indoor unit of a door type ceiling mounted air conditioner schematically illustrating an indoor unit of a door type ceiling mounted air conditioner according to another embodiment of the present invention.

1 to 10 , the door type ceiling-mounted indoor air conditioner according to an embodiment of the present invention includes a housing 100 , a door 200 , a heat exchange element 300 , a HEPA filter 4000 , and an evaporator 450 . , an air supply fan unit 500 , and an exhaust fan unit 600 .

The housing 100 is mounted on one side (the front side of FIG. 1) so that the door 200 can be opened and closed, and the heat exchange element 300, the HEPA filter 400, the evaporator 450, the deodorization filter 470, The air supply fan unit 500 and the exhaust fan unit 600 are accommodated. By opening the door 200 from the housing 100 as if opening a refrigerator door, the heat exchange element 300 and the HEPA filter 400 can be replaced. In addition, the deodorizing filter 470 can also be replaced when the housing 100 is opened.

The housing 100 includes an outdoor air suction unit 110 , an air supply unit 120 , a return air unit 130 , and an exhaust unit 140 on one side (upper side based on FIGS. 1 and 2 ). The outdoor air suction unit 110 is a passage through which external air is sucked. The air supply unit 120 is a passage for supplying air into the room. The return air unit 130 recovers air circulated in the room. The exhaust unit 140 discharges air to the outside.

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

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

The UV sterilization lamp is an ultraviolet lamp (UV Lamp, Ultraviolet Ray Lamp) and can sterilize bacteria with ultraviolet rays in the air supply unit 120 . It is possible to sterilize bacteria while controlling the operating time and irradiation amount of the UV sterilization lamp.

Plasma Sterilization & Deodorization Device may sterilize and deodorize bacteria in the air supply unit 120 using plasma ions.

The electric 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 by adsorbing hundreds of millions of odors with a size of 0.5 to 1.0 mm from carbon.

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

In the present invention, the housing 100 further includes a heat exchange bracket 150 , a first chamber part 160 , a second chamber part 170 , a third chamber part 180 , and a fourth chamber part 190 . The heat exchange bracket 150 is formed in a hollow rhombus shape at the center of the lower side (refer to FIG. 3 ) of the housing 100 . The heat exchange bracket 150 is formed in a hollow rhombus shape to accommodate and support the heat exchange element 300 .

The heat exchange bracket 150 is formed to support the edge portion of the heat exchange element 300 with ease in attaching and detaching the heat exchange element 300 . The first chamber part 160 to the fourth chamber part 190 are disposed at positions corresponding to four surfaces of the heat exchange element 300 . In the drawings of the present invention, the heat exchange element 300 is formed in the shape of a square column, but is not limited thereto.

The first chamber part 160 communicates with the first surface part 151 of the heat exchange bracket 150 and the outdoor air suction passage part 210 of the door 200 . The first surface portion 151 is formed in the lower portion of the heat exchange bracket 150 in reference to FIG. 8 .

The second chamber part 170 communicates with the second surface part 153 of the heat exchange bracket 150 and the air supply fan part 500 . The second surface portion 153 is formed on the left side of the heat exchange bracket 150 in FIG. 8 .

The third chamber part 180 communicates with the third surface part 155 of the heat exchange bracket 150 and the return air passage part 220 of the door 200 . The third surface portion 155 is formed in the upper portion of the heat exchange bracket 150 in reference to FIG. 8 .

The fourth chamber part 190 communicates with the fourth surface part 157 of the heat exchange bracket 150 and the exhaust fan part 600 . The fourth surface portion 157 is formed on the right side of the heat exchange bracket 150 in FIG. 8 .

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 respectively arranged to support the edge portion of the heat exchange element 300 , and the heat exchange element ( While supporting 300) to a minimum, it is possible to inhale and outflow air 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 in the housing 100 to open and close between the heat exchange element 300 and the deodorization filter 470 . The bypass damper 159 controls the air to flow to the deodorizing filter 470 or the heat exchange element 300 while being opened and closed. The amount of air flowing into the heat exchange element 300 , the deodorization filter 470 , or the HEPA filter 400 may be adjusted according to the rotation angle of the rotated bypass damper 159 ).

That is, when the bypass damper 159 is opened, the air sucked through the return air unit 130 flows toward the HEPA filter 400 and the deodorization filter 470 side, and when the bypass damper 159 is closed, the return air unit 130 ), the air sucked in may be supplied to the heat exchange element 300 .

With the opening of the bypass damper 159, the air sucked through the return air unit 130 may be recirculated. The recirculated air may be filtered by the deodorization filter 470 and the HEPA filter 400 . In addition, while the opening angle of the bypass damper 159 is adjusted, the amount of air supplied may be adjusted. According to the opening of the bypass damper 159), ventilation may be reduced and the air volume of indoor air cleaning may 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, a wall, an 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 may maintain a stable fixed state indoors by the plurality of fixing parts 800 mounted on the upper side of the housing 100 . Therefore, the ventilation device for heat recovery according to the present invention can be easily installed in an existing facility, thereby promoting convenience of use.

Alternatively, in the present invention, the housing 100 is fixed to the wall 900, and may be installed and used as a wall-mounted type (see FIG. 12 ). In addition, the housing 100 may be fixed by hanging from the ceiling by a hanger or the like.

Outside air (external air) sucked in through the outdoor air intake passage 210 of the door 200 passes through the heat exchange element 300 through the first chamber 160 and flows into the second chamber 170 . The air circulated in the room is sucked into the third chamber part 180 through the return air passage part 220 of the door 200 . The air sucked into the third chamber part 180 flows to the fourth chamber part 190 through the heat exchange element 300 . At this time, heat exchange is performed between the air sucked from the outside in the heat exchange element 300 and the air circulated through the room. Therefore, it is possible to recover heat from indoor air and outdoor air.

The door 200 is mounted to be opened and closed on one side (right side of FIG. 3 ) of the housing 100 . The door 200 is hinge-coupled to one side of the housing 100 by a hinge 230 . The door 200 includes an outdoor air intake passage 210 and a return air passage 220 . The outdoor air intake passage 210 and the return air passage 220 are respectively formed along the longitudinal direction of the door 200 (up and down direction based on FIG. 7 ), and open upper and lower sides of the door 200 .

The door 200 is equipped with a hinge 230 in the longitudinal direction (up and down direction based on FIG. 2 ) of the housing 100 , and is rotated around the hinge 230 in the housing 100 to open and close the housing 100 . can

In the ventilation device for heat recovery according to the present invention, the housing 100 can be opened and closed by the door 200, so that it is arranged to descend from the ceiling using the dead space in the utility room, the veranda room, and the outdoor unit room, and the door 200 ), it is possible to facilitate replacement of the heat exchange element 300 and the HEPA filter 400 or the auxiliary filter 700 disposed in the housing 100 by opening and closing the housing 100 .

A handle 240 is mounted on the front side of the door 200 (refer to FIG. 2 ). A user may hold the handle 240 and easily open or close the door 200 from the housing 100 .

The door 200 is provided with a cicada ring 250 , and the door 200 and the housing 100 can be closed by the cicada ring 250 . Cicada ring 250 is shaped in a ring shape and is caught on the housing 100 to serve as a lock. The door 200 is detachably coupled to the housing 100 by the cicada ring 250 . The cicada ring 250 is provided with a spring, and by providing pressure in a locked state by the elastic force of the spring, it is possible to prevent the door 200 from being opened.

The heat exchange element 300 exchanges heat between the outside air sucked from the outdoor air intake passage 210 and the indoor air recovered from the return air unit 130 . The heat exchange element 300 is made of a rhombus-shaped column so that it can be mounted on the heat exchange bracket 150 . The heat exchange element 300 is detachably mounted on the heat exchange bracket 150 . The user grabs one end of the heat exchange element 300 (the right end of FIG. 6 ), slides it, and pulls it out to separate it from the heat exchange bracket 150 . The user can 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 opposite direction to the withdrawal.

The heat exchange element 300 has a flow path through which air flows from the first chamber unit 160 to the second chamber unit 170 and air flows from the third chamber unit 180 to the fourth chamber unit 190 therein. A flow path is formed. The flow path is arranged such that the air flows in a counter flow (Counter Flow). A cross flow is arranged to flow (see FIG. 8).

The heat exchange element 300 is formed in a rectangular shape in which the external air sucked from the outdoor air intake passage 210 and the indoor air recovered from the return air 130 cross-flow. The heat exchange element 300 may be formed in a rectangular shape, and thus may be easily manufactured.

In the present invention, the heat exchange element 300 includes a heat exchange element handle 310 . The user can hold the heat exchange element handle 310 and slide the heat exchange element 300 to take it out, so that it can be easily separated from the heat exchange bracket 150 .

Alternatively, in the present invention, the heat exchange element 300 may be formed in a hexagonal shape (honeycomb type) in which the external air sucked from the outdoor air intake passage 210 and the indoor air recovered from the return air 130 flow countercurrently. .

The heat exchange element 300 has a hexagonal shape in which a flow path through which air flows is a countercurrent flow. The counter-flow honeycomb heat exchanger 300 has better heat recovery efficiency than the cross-flow type heat exchanger.

The HEPA filter 400 filters the 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 second chamber 170 to filter the air that has passed through the heat exchange element 300 .

The HEPA filter 400 is detachably mounted to the HEPA filter bracket 171 of the second chamber unit 170 . The user grabs one end of the HEPA filter 400 (the right end of FIG. 5 ), slides it, and pulls it out to separate it from the HEPA filter bracket 171 of the second chamber unit 170 . 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 of the second chamber 170 in the opposite direction to the withdrawal. can

The HEPA filter 400 includes a HEPA filter (High Efficiency Particulate Air Filter). The HEPA filter is a kind of high-performance filter for removing radioactive dust and aerosols, and the HEPA filter 400 can remove 99.95 to 99.97% of particles having a diameter of 0.3 μ. In the present invention, the HEPA filter 400 is a rhombus-shaped pillar and is mounted on the HEPA filter bracket 171 of the second chamber portion 170 of the housing 100 to sufficiently remove foreign substances before discharging air into the room. can

The HEPA filter 400 is made of a glass fiber 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 the HEPA filter. The medium filter is placed in front of the HEPA filter. That is, the air sucked into the second chamber 170 passes through the medium filter in the HEPA filter 400 and is then filtered through the HEPA filter. The medium filter is a coarser filter than the above-described HEPA filter.

The HEPA filter 400 is disposed in a “W” shape in order to maximize the amount of air passing through it. The HEPA filter 400 is supported by a HEPA filter bracket 410 installed in the housing 100 in a triangular shape and an inverted triangle shape. In the present invention, four combinations of the HEPA filter 400 are arranged in a W-shape. The HEPA filter 400 may be disposed in a W-shape, thereby increasing a contact area with air to effectively filter air within the limited housing 100 .

The door type ceiling-hung air conditioner indoor unit 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 deodorizing filter 470 made of a carbon filter adsorbs odors in the air from carbon (activated carbon) to prevent odors from being transmitted into the room.

The evaporator 450 absorbs heat from the air that has passed through the HEPA filter 400 . Heat exchange is performed between the refrigerant in the evaporator 450 and the air that has passed through the HEPA filter 400, and heat absorption is achieved by liquid evaporation. By absorbing heat from the air that has passed through the HEPA filter 400 in the evaporator 450 , it is possible to reduce heat loss and improve indoor air conditioning and cooling performance.

A drain pan 455 for accommodating the liquid generated by the heat absorbed by the evaporator 450 is installed under the evaporator 450 . The drain pan 455 is formed in the form of a wide tray disposed under the evaporator 450 , receives the liquid generated in the evaporator 450 and blocks it from falling into the interior of the housing 100 . The 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 (refer to FIG. 7 ) in communication with the air supply unit 120 , and the air passing through the evaporator 450 flows to the air supply unit 120 . The air supply fan unit 500 sucks in air that has passed through the HEPA filter 400 and the evaporator 450 , communicates with the air supply unit 120 , and supplies the filtered air through the air supply unit 120 to the room.

The exhaust fan unit 600 is disposed on the upper side of the housing 100 (refer to FIG. 7 ) to communicate with the exhaust unit 140 , and the air passing through the heat exchange element 300 flows to the exhaust unit 140 . The exhaust fan unit 600 sucks in air that has passed through the heat exchange element 300 , communicates with the exhaust unit 140 , and discharges the air to the outside through the exhaust unit 140 .

The door type heat recovery air purifying ventilator 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 the external air sucked from the outdoor air intake passage part 210 , and provides it to the heat exchange element 300 . The auxiliary filter accommodating part 161 is disposed on the first surface part 151 side of the heat exchange bracket 150 . Accordingly, the air sucked into the first chamber unit 160 through the outdoor air intake passage unit 210 may be filtered through the auxiliary filter 700 and may be suctioned into the heat exchange element 300 . That is, large foreign substances are removed through the auxiliary filter 700 to reduce the load on the heat exchange element 300 and the HEPA filter 400 and extend the lifespan.

The auxiliary filter accommodating part 161 has a 'C' shape in cross section so as to support the edge 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 and detached.

The auxiliary filter 700 is detachably mounted to the auxiliary filter accommodating part 161 of the first chamber part 160 . The user grabs one end of the auxiliary filter 700 (the right end of FIG. 5 ), slides it, and pulls it out, and separates it from the auxiliary filter receiving unit 161 of the first chamber unit 160 . The user inserts the new auxiliary filter 700 or the cleaned auxiliary filter 700 into the auxiliary filter accommodating part 161 of the first chamber 160 in the opposite direction to the withdrawal, thereby replacing the auxiliary filter 700. can do.

An indoor unit of a door-type ceiling-hung air conditioner according to another embodiment of the present invention will be described with reference to FIGS. 11 to 13 . The door-type ceiling-hung air conditioner indoor unit according to another embodiment of the present invention includes an outdoor air intake unit 110 through which outside air is sucked, an air supply unit 120 that supplies air to the room, and a return air unit that recovers air circulated through the room. 130 and the exhaust unit 140 for discharging air to the outside may be disposed in communication with the outside of the housing 100 , that is, on the upper side.

Next, the operation of the door type ceiling-hung air conditioner indoor unit according to the present invention will be described. External air is sucked into the housing 100 through the outdoor air suction unit 110 . The air sucked into the housing 100 flows through the outdoor air intake passage 210 of the door 200 .

The air flowing along the outdoor air intake passage 210 is sucked into the first chamber portion 160 of the housing 100 . The air sucked into the first chamber unit 160 is primarily filtered by the auxiliary filter 700 and then sucked into the heat exchange element 300 .

The air passing through the heat exchange element 300 is sucked into the second chamber part 170 of the housing 100 . The air sucked into the second chamber unit 170 is secondarily filtered by the HEPA filter 400 .

The air filtered by the HEPA filter 400 is supplied into the room through the air supply unit 120 by the operation of the air supply fan unit 500 . At this time, the air filtered by the HEPA filter 400 is heat-exchanged in the evaporator 450 .

The air circulating in the room is sucked into the housing 100 through the return air unit 130 . The air sucked into the housing 100 flows through the return air passage 220 of the door 200 .

The air flowing along the return air passage part 220 is sucked into the third chamber part 180 of the housing 100 . The air sucked into the third chamber part 180 is sucked into the heat exchange element 300 .

In the heat exchange element 300 , the air flowing from the third chamber part 180 through the heat exchange element 300 to the fourth chamber part 190 passes through the heat exchange element 300 in the first chamber part 160 . Heat exchange of the air flowing into the second chamber unit 170 is performed. Therefore, it is possible to recover the heat of the air.

Air passed through the heat exchange element 300 and sucked into the fourth chamber unit 190 is discharged to the outside through the exhaust unit 140 by the operation of the exhaust fan unit 600 .

According to the door type ceiling-hung air conditioner indoor unit according to the present invention, it is possible to increase the capacity of the HEPA filter to reduce the static pressure loss, and to supply clean air 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 indoor air conditioning performance by absorbing heat from the air that has passed through the HEPA filter.

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

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

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible therefrom by those of ordinary skill in the art. will understand Therefore, the true technical protection scope of the present invention should be defined by the following claims.

100: housing 110: outdoor air intake
120: air supply 130: return air unit
140: exhaust 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 unit 170: second chamber unit
171: HEPA filter bracket 180: third chamber part
190: fourth chamber 200: door
210: outside air intake passage 220: return air passage
230: hinge 240: handle
250: cicada ring 300: heat exchange element
310: heat exchange element handle 400: HEPA filter
410: HEPA filter bracket 450: evaporator
455: evaporator bracket 470: deodorizing filter
475: deodorizing filter bracket 480: blocking wall
500: supply air fan 600: exhaust fan unit
700: auxiliary filter 800: fixed part
900: wall

Claims (6)

A housing comprising: a housing having an outdoor air suction unit for sucking outside air, an air supply unit for supplying air to the room, a return air unit for recovering air circulated through the room, and an exhaust unit for discharging air to the outside;
a door operably mounted on the housing and having an outdoor air intake passage communicating with the outdoor air intake and a return air passage communicating with the return air;
a heat exchange element for exchanging heat between the outdoor air sucked in from the outdoor air intake passage and indoor air recovered from the return air passage; a HEPA filter for filtering the air that has passed through the heat exchange element;
an evaporator for absorbing heat from the air passing through the HEPA filter;
an air supply fan unit communicating with the air supply unit and configured to flow the air passing through the evaporator to the air supply unit; and an exhaust fan part communicating with the exhaust part and flowing the air that has passed through the heat exchange element to the exhaust part,
The door type ceiling-mounted air conditioner indoor unit, characterized in that by opening the door from the housing, the heat exchange element and the HEPA filter can be replaced.
According to claim 1,
The HEPA filter is a door type ceiling-hung air conditioner indoor unit, characterized in that it is arranged in a "W" shape.
According to claim 1,
and a deodorizing filter disposed between the heat exchange element and the HEPA filter to remove odors from the air.
4. The method of claim 3,
The housing includes a bypass damper installed to be open and closed between the heat exchange element and the deodorization filter,
The bypass damper is opened and closed while controlling the air to flow to the deodorizing filter or the heat exchange element.
According to claim 1,
At least one of a UV sterilization lamp, a plasma sterilization and deodorization device, an electric dust collector, a carbon deodorization filter, and an oxygen generator is mounted in the air supply unit.
According to claim 1,
The housing is a door type ceiling-mounted air conditioner indoor unit, characterized in that it can be installed on the wall.

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