KR20200122942A - modular indoor unit of air conditioner - Google Patents

Abstract

The modular indoor unit according to the present invention has a rectangular parallelepiped shape, a housing having an inlet through which air is introduced, and an outlet through which air is discharged on the other side, and a housing disposed inside the housing, and outside air through the inlet. And a blower unit for discharging the outside air sucked through the discharge port, and a heat exchanger disposed on a flow path of the air so that heat exchange with the air sucked into the blower unit proceeds, and the housing can be separated and combined. It is formed in a prefabricated manner, and the position of the discharge port is changed so that the suction port and the discharge port are disposed at positions facing each other or disposed in a direction perpendicular to each other.

Description

Modular indoor unit of air conditioner

The present invention relates to a modular indoor unit.

In general, an air conditioner is a device that creates a more comfortable indoor environment for a user, and can control at least one of air temperature, humidity, and cleanliness.

An air conditioner is a system that cools, heats or ventilates a space to be air-conditioned by repeatedly inhaling air in the room, exchanging heat with a low-temperature or high-temperature refrigerant, and then discharging it into the room. Compressor, expansion mechanism, and first heat exchange It consists of a refrigeration cycle of refrigerant consisting of a group (condenser or evaporator) and a second heat exchanger (evaporator or condenser).

And, as is well known, air conditioners are largely divided into separate air conditioners in which the outdoor unit and indoor unit are installed separately, and an integrated air conditioner in which the outdoor unit and the indoor unit are installed integrally. It can be divided into air conditioners.

Particularly, a large-capacity air conditioner may have an indoor unit and an outdoor unit as an integral type, and may have a structure capable of high quality conditioned air into a plurality of air conditioning target spaces requiring air conditioning by ducts or the like.

In addition, among the large-capacity air conditioners, it is configured to give the user an optimal sense of air conditioning by mixing the external air (outdoor air) and indoor air in an appropriate ratio according to the target load amount according to the temperature, humidity, and cleanliness of the target space. It is also classified as'Air Handling Unit.

Such an air handling unit may be configured for each module according to each function so as to efficiently drive the system according to the load capacity of the target target space.

9 is a view showing a state in which a conventional factory indoor unit is installed.

Meanwhile, in the case of a conventional factory-type indoor unit, as shown in FIG. 9, a flexible duct is connected to the indoor unit discharge unit to control the direction in order to deliver cool air to each individual space.

Such a vertical system occupies a large space externally, and there is a problem in that secondary flow loss occurs through a duct that controls the direction.

Korean Patent Publication No. 10-2018-0035081'Air conditioning unit'

The problem to be solved by the present invention is to separate the heat exchanger and the housing defining the flow path through which the air passes into separate parts, so that the discharge of the heat-exchanged air in the heat exchanger can be changed in various directions, and the degree of freedom of installation of the indoor unit is increased. This is to provide a modular indoor unit capable of maximizing the direction change effect by applying orifices having different lengths in the circumferential direction of the air discharge direction.

The modular indoor unit according to an embodiment of the present invention has a rectangular parallelepiped shape, has an intake port through which air is introduced on one side, and a discharge port through which air is discharged on the other side, and is disposed inside the housing, And a blower unit that sucks outside air through the inlet and discharges the outside air sucked through the discharge port, and a heat exchanger disposed on a flow path of air so that heat exchange with the air sucked through the blower unit proceeds.

The housing is formed in an assembly type that can be separated and coupled, and the position of at least one of the suction port or the discharge port is changed so that the suction port and the discharge port are disposed at positions facing each other or disposed in a direction perpendicular to each other.

The housing includes a frame consisting of a combination of a plurality of bars disposed corresponding to respective corner portions of the housing, and a plurality of side surfaces that are detachably coupled to the frame and form at least one side surface of the housing. It may include a panel, a discharge panel detachably coupled to the frame, the discharge port is formed.

The side panel may be coupled only to the remaining four sides except for one side and the other side of the frame in which the suction port and the discharge port are formed.

At least a portion of the plurality of side panels may be integrally formed.

A total of four side panels may be provided to be coupled to the four side surfaces of the frame, and at least two panels disposed perpendicular to each other among the four side panels may be integrally formed.

It may further include a discharge cover covering at least a part of the discharge port and having a plurality of through holes.

The through hole may be arranged radially.

The suction port and the heat exchanger may be formed on a rear surface of the housing, and the discharge port may be formed on an upper surface or a lower surface of the housing, or on any one of a front surface or a left surface or a right surface.

The blowing unit may generate a suction force while rotating by being connected to a rotation motor that provides rotational force and the rotational motor.

When the location of the discharge port is changed, the location of the blowing unit may be changed in the same manner as the discharge port.

A hollow guide ring may be disposed between the discharge port and the blowing unit to guide the flow of discharged air.

The guide ring may have a shape in which the length in the discharge direction of the air gradually increases and decreases along the circumferential direction.

The guide ring may have an extension portion extending outwardly along a circumferential direction so as to be coupled while being in surface contact with the inner surface of the housing.

The guide ring may gradually increase in diameter at one side adjacent to the blowing unit, so that an extension part may be formed.

A drain pan having a concave shape from an upper side to a lower side may be provided below the heat exchanger to accommodate a portion of the lower end of the heat exchanger.

According to the present invention, the heat exchanger and the housing defining the flow path through which air passes are separated into separate parts, so that the discharge of the heat-exchanged air in the heat exchanger can be changed in various directions, and the degree of freedom of installation of the indoor unit can be increased.

In addition, by applying orifices having different lengths in the circumferential direction of the air in the discharge direction, the direction change effect may be maximized.

In addition, the present invention can be applied to all indoor units of the VRF (Variable Refrigerant Flow) type.

That is, there is an advantage that can be applied to all indoor units connected by a refrigerant pipe.

In addition, since it is possible to control by changing the position of the axial fan itself, there is an advantage that it is possible to control the direction while maintaining the straightness of the flow.

In addition, since it is made of a modular type, it has the advantage of easy maintenance due to easy separation.

In addition, there is an advantage of improving straightness and noise by combining a guide ring inside according to a desired discharge direction.

In particular, there is an advantage of providing a guide ring, so that even if the flow direction is switched to a vertical direction, flow transmission is possible without deteriorating performance.

In other words, when an indoor unit is installed in a factory, it is possible to control the flow to the bottom and to the side, so there is an advantage that it is possible to supply cold cold air to workers without loss.

The ventilation unit has the advantage of very high degree of freedom of installation as it can control the flow direction in the vertical, left, and right directions, and the front and rear directions according to the assembly type of the cover.

It is very advantageous to the factory-type stationary type, and it is advantageous in maintenance and repair as all parts are manufactured in a modular type.

Existing factory indoor units have a fixed direction of the discharge unit, so a separate duct must be assembled. In the present invention, the heat exchanger unit and the blowing unit are managed as separate modules, which is advantageous for variable capacity and has an advantage that products can be shared.

1 is a perspective view of a modular indoor unit according to an embodiment of the present invention.
2 is an exploded perspective view of a modular indoor unit according to an embodiment of the present invention.
3 is a perspective view showing a state in which discharge directions of the modular indoor unit according to an embodiment of the present invention are variously set.
4 is a view showing an excerpt of a discharge part, an orifice, and a fan, which are some components of the present invention.
5 is a perspective view comparing the shapes of a symmetrical orifice and an asymmetrical orifice.
6 is a graph comparing power consumption according to air volume when the symmetrical orifice shown in FIG. 5 and the asymmetrical orifice are applied.
7 is a graph comparing wind reach and noise when applying the symmetrical orifice and the asymmetrical orifice shown in FIG. 5.
8 is a graph comparing flow rates when the symmetrical orifice and the asymmetrical orifice shown in FIG. 5 are applied.
9 is a view showing a state in which a conventional factory indoor unit is installed.

Hereinafter, specific embodiments of the present invention will be described in detail together with the drawings.

In general, for cooling and heating control in a large space such as a factory, a central air conditioning duct distribution method using AHU (Air Handling Unit) is applied.

At this time, it is difficult to individually control because it supplies cooling/heating in a batch. The present invention is a VRF (Variable Refrigerant Flow) system, and employs a factory-type modular indoor unit system capable of individual air conditioning even in a large space such as a factory. In the case of the VRF (Variable Refrigerant Flow) system as described above, it is possible to freely install even in a layout of a large space through a long refrigerant pipe. In addition, since duct work is not required, installation, extension, and relocation are easily possible, thereby significantly reducing costs.

In general, the indoor unit of the VRF (Variable Refrigerant Flow) system has a drain installed to treat water generated from the heat exchanger (evaporator), so the installation method is limited and it is difficult to control the discharge direction.

In the present invention, the heat exchanger and the flow path are separated into separate parts to discharge cold or hot air in various directions, so that the installation freedom is very high. In addition, the asymmetric orifice is applied to maximize the direction change effect.

1 is a perspective view of a modular indoor unit according to an embodiment of the present invention. And, Figure 2 is an exploded perspective view of the modular indoor unit according to an embodiment of the present invention. And, Figure 3 is a perspective view showing a state in which the discharge direction of the modular indoor unit according to an embodiment of the present invention is set in various ways.

1 to 3, the modular indoor unit according to the present invention has a rectangular parallelepiped shape, a suction port 101 through which air is introduced is formed on one side, and a discharge port 102 through which air is discharged is formed on the other side. A housing 100, a blowing unit 200 disposed inside the housing 100, suctioning outside air through the suction port 101, and discharging the outside air sucked through the discharge port 102, and the blowing It includes a heat exchanger 300 disposed on the flow path of the air so that heat exchange with the air sucked into the unit 200 proceeds.

The heat exchanger 300 may be disposed inside the housing 100 and may be disposed between the suction port 101 and the blowing unit 200.

In addition, the heat exchanger 300 may be disposed outside the housing 100 and may be disposed in front of the suction port 101 based on the flow direction of the air.

As described above, when the heat exchanger 300 is disposed outside the housing 100, it may include a cover 600 for a heat exchanger covering at least a part of the heat exchanger 300.

For example, the heat exchanger 300 has a flat box shape with a thin thickness. In addition, the cover 600 for the heat exchanger may cover four side surfaces parallel to the thickness direction of the heat exchanger 300.

As described above, when the heat exchanger 300 and the housing 100 are provided in a separate type, and the heat exchanger 300 is provided outside the housing 100, the operation of separating and assembling the housing 100 will be performed more easily. I can.

Further, a drain pan 700 having a concave shape from an upper side to a lower side may be provided below the heat exchanger 300 to accommodate a part of the lower end of the heat exchanger 300.

Water generated when heat exchange is performed in the heat exchanger 300 may be collected in the drain pan 700.

For reference, the air flows in the order of the inlet 101, the blowing unit 200, and the discharge port 102. And, in this case, based on the flow direction of the air, the suction port 101 may be understood to be disposed in front of the blowing unit 200, and the blowing unit 200 may be understood as being disposed in front of the discharge port 102. have.

In addition, the housing 100 is formed in an assembly type that can be separated and coupled, so that the suction port 101 and the discharge port 102 are disposed at a position facing each other, or disposed in a direction perpendicular to each other, the suction port 101 ) Or the location of the discharge port 102 may be changed.

In this embodiment, the suction port 101 and the heat exchanger 300 are formed on the rear surface of the housing 100, and the discharge port 102 is an upper surface or a lower surface or a front or left surface of the housing 100, or It may be formed on any one side of the right side.

Referring to FIG. 3, it can be seen that the location of the discharge port 102 has been changed in various ways.

First, referring to FIG. 3A, the suction port 101 is formed on the rear surface of the housing 100, and the discharge port 102 is formed on the upper surface of the housing 100. At this time, the flow direction of the air may be formed to be bent upward.

In addition, referring to FIG. 3B, the suction port 101 is formed on the rear surface of the housing 100, and the discharge port 102 is formed on the lower surface (bottom surface) of the housing 100. In this case, the flow direction of the air may be formed to be bent downward.

Further, referring to FIG. 3C, the suction port 101 is formed on the rear surface of the housing 100, and the discharge port 102 is formed on the left side of the housing 100. In this case, the flow direction of air may be formed to be bent to the left.

In addition, referring to FIG. 3D, the suction port 101 is formed on the rear surface of the housing 100, and the discharge port 102 is formed on the right side of the housing 100. In this case, the flow direction of air may be formed to be bent to the right.

In addition, referring to FIG. 1, the suction port 101 is formed on the rear surface of the housing 100, and the discharge port 102 is formed on the front surface of the housing 100. At this time, the flow direction of air may be formed in a straight line.

In addition, the housing 100 is a frame 110 made of a combination of a plurality of bars arranged corresponding to each corner portion of the housing 100, and is detachably coupled to the frame 110 , A plurality of side panels 120 forming at least one side surface of the housing 100, and a discharge panel 130 detachably coupled to the frame 110 and having the discharge port 102 formed therein. I can.

The frame 110 has a rectangular parallelepiped shape, and has an open top, bottom, front, rear, left side, and right side.

In addition, each open surface may be selectively shielded according to the discharge panel 130.

The location of the discharge port 102 may be determined according to the coupling position of the discharge panel 130, and a direction in which cold air or warm air is discharged may be determined.

The side panel 120 may be coupled only to the remaining four sides except for one side and the other side of the frame 110 on which the suction port 101 and the discharge port 102 are formed.

In addition, the suction port 101 may be defined by one side of the open frame 110.

Again, referring to FIG. 3, it can be seen that the location of the discharge port 102 is variously changed according to the coupling position of the discharge panel 130.

First, referring to Figure 3 (a), the side panel 120 is not coupled to the rear of the frame 110, the rear of the frame 110 is opened, the suction port 101 is the rear of the housing 100 It can be confirmed that it was formed in. Further, the discharge panel 130 is coupled to the upper surface of the frame 110, so that the discharge port 102 can be confirmed in a state formed on the upper surface of the housing 100. At this time, the side panel 120 is coupled to the bottom, front, left and right sides of the frame 110, and the flow of air introduced from the rear to the front is bent upwardly.

In addition, referring to Figure 3 (b), the side panel 120 is not coupled to the rear of the frame 110, the rear of the frame 110 is opened, the suction port 101 is the rear of the housing 100 It can be confirmed that it was formed in. In addition, the discharge panel 130 is coupled to the bottom surface of the frame 110, so that the discharge port 102 is formed on the bottom surface of the housing 100. At this time, the side panel 120 is coupled to the top, front, left and right sides of the frame 110, and the flow of air introduced from the rear to the front is bent downward.

In addition, referring to (c) of Figure 3, the side panel 120 is not coupled to the rear of the frame 110, the rear of the frame 110 is opened, the suction port 101 is the rear of the housing 100 It can be confirmed that it was formed in. In addition, the discharge panel 130 is coupled to the left side of the frame 110, so that the discharge port 102 is formed on the left side of the housing 100. At this time, the side panel 120 is coupled to the top, front, bottom, and right sides of the frame 110, and the flow of air introduced from the rear to the front is bent to the left.

In addition, referring to (d) of Figure 3, the side panel 120 is not coupled to the rear of the frame 110, the rear of the frame 110 is opened, the suction port 101 is the rear of the housing 100 It can be confirmed that it was formed in. In addition, the discharge panel 130 is coupled to the right side of the frame 110, so that the discharge port 102 is formed on the right side of the housing 100. At this time, the side panel 120 is coupled to the upper surface, the front surface, the bottom surface, and the left surface of the frame 110, and the flow of air introduced from the rear to the front is bent to the right.

In addition, referring to FIG. 1, it is confirmed that the side panel 120 is not coupled to the rear side of the frame 110, and the rear side of the frame 110 is opened, so that the suction port 101 is formed on the rear side of the housing 100. I can. In addition, the discharge panel 130 is coupled to the front surface of the frame 110, so that the discharge port 102 is formed on the front surface of the housing 100. At this time, the side panel 120 is coupled to the upper, lower, left, and right surfaces of the frame 110, and the flow of air introduced from the rear to the front is continuously maintained from the rear to the front.

In addition, at least some of the plurality of side panels 120 may be integrally formed.

For example, the side panels 120 are provided in a total of four to be coupled to the four sides of the frame 110, and of the four side panels 120, at least two panels disposed perpendicular to each other are It can be formed integrally.

As another example, the side panels 120 are provided in a total of four to be coupled to the four sides of the frame 110, and three of the four side panels 120 may be integrally formed. . In this case, the three panels integrally formed may form a'c' shape.

In addition, it may further include a discharge cover 400 that covers at least a part of the discharge port 102 and has a plurality of through holes 401 formed therein.

Air discharged from the blowing unit 200 toward the discharge port 102 may be supplied to the outside of the housing 100 through the through hole 401.

In this case, the through hole 401 may be disposed radially.

In addition, the discharge cover 400 may form a hub 402 in the center. In addition, a plurality of through holes 401 may be formed around the hub 402. With the configuration of the discharge cover 400, the flow of discharged air may be uniformly formed.

In addition, the blowing unit 200 may include a rotation motor 210 that provides rotational force, and a fan 220 that is connected to the rotational motor 210 and rotates to generate a suction force. For example, the fan 220 may be provided as an axial fan.

In addition, when the location of the discharge port 102 is changed, the location of the blowing unit 200 may be changed in the same manner as the discharge port 102.

For example, the central axis of the discharge port 102 and the central axis of the blowing unit 200 may be disposed on the same axis.

As another example, the central axis of the discharge port 102 and the central axis of the blowing unit 200 may be arranged in parallel.

4 is a view showing an excerpt of a discharge part, an orifice, and a fan, which are some components of the present invention. 5 is a perspective view comparing the shapes of a symmetrical orifice and an asymmetrical orifice.

4 to 5, a hollow guide ring 500 may be disposed between the discharge port 102 and the blowing unit 200 to guide the flow of discharged air.

The air discharged from the fan 220 is guided to the discharge port 102 through the hollow 501 of the guide ring 500.

One side of the guide ring 500 may be coupled to an inner surface of the housing 100.

In detail, the guide ring 500 may be coupled to an inner surface of the discharge cover 400.

The hollow 501 of the guide ring 500 may be disposed at a position facing the discharge port 102 of the discharge cover 400.

The guide ring 500 has a shape in which the length in the discharge direction of the air gradually increases and decreases along the circumferential direction.

When viewed from the side, the guide ring 500 may have one side formed in a vertical direction and the other side formed in an inclined direction.

In addition, the guide ring 500 is a modular indoor unit having an extension part 510 extending outwardly along a circumferential direction so as to be coupled while making surface contact with the inner surface of the housing 100 on one side.

In addition, the guide ring 500 is gradually increased in diameter at one side adjacent to the blowing unit 200, so that an extension part 520 may be formed.

By the guide ring 500 as described above, the fluidity of the discharged air may be improved.

As an example, when the discharge port 102 is formed on the lower surface of the housing 100 and air is introduced from the rear to the front and then discharged from the upper side to the lower side, the guide ring 500 shown in FIG. 5(b) When arranged in accordance with the discharge port 102, the flow of air can be improved.

In detail, it is introduced from the rear to the front, and the flow direction is changed vertically downward, so that a part of the discharged air still has a property to flow forward.

At this time, one side with a long length in the discharge direction of air (upper side, see Fig. 5) is positioned in the front, and the other side with a short length in the discharge direction (lower side, see Fig. 5) is positioned at the rear side, the guide ring ( 500), the flow of air can be improved.

That is, some air intended to flow forward may be guided to flow downward by one side (upper side, see FIG. 5) of the long guide ring 500 in the discharge direction. And, by the action of the guide ring 500, the straightness of the air discharged downward may be improved.

As another example, when the discharge port 102 is formed on the upper surface of the housing 100 and air is introduced from the rear to the front and then discharged to the upper side, the flow direction of the air is changed vertically upward. And, some of the discharged air still has a property to flow forward.

At this time, one side with a long length in the discharge direction of air (upper side, see Fig. 5) is positioned in the front, and the other side with a short length in the discharge direction (lower side, see Fig. 5) is positioned at the rear side, the guide ring ( 500), the flow of air can be improved.

That is, some air intended to flow forward may be guided to flow upward by one side (upper side, see FIG. 5) of the guide ring 500 having a long length in the discharge direction. And, by the action of the guide ring 500, the straightness of the air discharged upward may be improved.

In this embodiment, the guide ring 500 may be disposed at a position corresponding to the discharge port 102, and may be disposed inside the housing 100.

In addition, when the guide ring 500 has a formation in which the length in the discharge direction of air is not uniform, one side having a long length in the discharge direction of air (upper side, see FIG. 5) is relatively The other side (lower side, see FIG. 5), which is disposed at a distant position and has a short length in the discharge direction of air, may be disposed at a position relatively close to the inlet 101.

6 is a graph comparing power consumption according to an air volume when the symmetrical orifice and the asymmetrical orifice shown in FIG. 5 are applied.

In FIGS. 6 and 7 to be described later, a'symmetric orifice' means an orifice having a constant length in the discharge direction shown in FIG. 5A.

On the other hand, the'asymmetric orifice' refers to an orifice whose length in the discharge direction shown in FIG. 5B is variable along the circumferential direction.

6, when the'asymmetric orifice' shown in FIG. 5(b) is mounted in the indoor unit, compared to the case where the'symmetric orifice' shown in FIG. 5(a) is mounted in the indoor unit, at the same air volume , It can be seen that the power consumption is low.

7 is a graph comparing wind reach and noise when applying the symmetrical orifice and the asymmetrical orifice shown in FIG. 5.

Referring to FIG. 7, when the'asymmetric orifice' shown in FIG. 5(b) is mounted on the indoor unit, the noise is lower than when the'symmetric orifice' shown in FIG. 5(a) is mounted on the indoor unit. It can be seen that the wind has increased and the reach of the wind has increased.

8 is a graph comparing flow rates when the symmetrical orifice and the asymmetrical orifice shown in FIG. 5 are applied.

Referring to FIG. 8, when the'asymmetric orifice' shown in FIG. 5(b) is mounted on the indoor unit, compared to the case where the'symmetric orifice' shown in FIG. 5(a) is mounted on the indoor unit, at various positions. It can be seen that the measured flow rate is increased.

According to the present invention as described above, the heat exchanger 300 and the housing 100 defining a flow path through which air passes are separated into separate parts, so that the discharge of the air heat-exchanged in the heat exchanger 300 is reduced to five directions. As it can be exported, the degree of freedom for installation of the indoor unit can be increased. In addition, by applying a guide ring (orifice) having a different length in the circumferential direction of the air in the discharge direction, the direction change effect can be maximized.

In addition, the present invention can be applied to all indoor units of the VRF (Variable Refrigerant Flow) type.

That is, it can be applied to all indoor units connected to the refrigerant pipe.

In addition, since control is possible by changing the position of the axial fan itself, direction control is possible while maintaining the straightness of the flow.

In addition, it is made of a modular type, so it is easy to separate and maintain.

In addition, it is possible to improve straightness and noise by combining a guide ring inside according to a desired discharge direction.

In particular, with a guide ring, even if the flow direction is changed to a vertical direction, flow transmission is possible without deterioration in performance.

In other words, when the indoor unit is installed in a factory, it is possible to control the flow to the bottom and to the side, so that cold air can be supplied to the worker without loss.

The ventilation unit can control the flow direction in the vertical, left and right, front and rear directions according to the assembly type of the cover, so installation freedom is very high.

It is very advantageous to the factory-type stationary type, and it is advantageous in maintenance and repair as all parts are manufactured in a modular type.

Existing factory indoor units have a fixed direction of the discharge unit, so a separate duct must be assembled. In the present invention, the heat exchanger unit and the blowing unit are managed as separate modules, which is advantageous for variable capacity and enables product common use.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention.

Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments.

The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

100: housing 101: inlet
102: discharge port 110: frame
120: panel 200: blowing unit
300: heat exchanger 400: discharge cover
401: through hole 402: hub
500: guide ring 501: hollow
510: extension part 520: extension part
600: heat exchanger cover 700: drain pan

Claims (15)

A housing having a rectangular parallelepiped shape, a suction port through which air is introduced, and a discharge port through which air is discharged on the other side;
A blowing unit disposed inside the housing, suctioning outside air through the suction port, and discharging the outside air sucked through the discharge port;
And a heat exchanger disposed on a flow path of air so that heat exchange with air sucked into the blowing unit proceeds,
The housing is a modular type in which the position of at least one of the suction port or the discharge port is changed so that the suction port and the discharge port are disposed in a position facing each other or disposed in a direction perpendicular to each other, and Indoor unit.
The method of claim 1,
The housing is:
A frame made of a combination of a plurality of bars arranged to correspond to respective corner portions of the housing;
A plurality of side panels detachably coupled to the frame and forming at least one side surface of the housing;
Modular indoor unit comprising a discharge panel detachably coupled to the frame and having the discharge port.
The method of claim 2,
The side panel is a modular indoor unit coupled to only the remaining four sides excluding one side and the other side of the frame in which the suction port and the discharge port are formed.
The method of claim 2,
Among the plurality of side panels, at least a portion of the modular indoor unit is integrally formed.
The method of claim 4,
The side panels are provided in a total of 4 so as to be coupled to the 4 sides of the frame,
Of the four side panels, at least two panels disposed perpendicular to each other are integrally formed in a modular indoor unit.
The method of claim 1,
The modular indoor unit further comprises a discharge cover that covers at least a part of the discharge port and has a plurality of through holes.
The method of claim 6,
The through hole is a modular indoor unit arranged radially.
The method of claim 1,
The suction port and the heat exchanger are formed on the rear surface of the housing,
The discharge port is a modular indoor unit formed on an upper surface or a lower surface of the housing, or on a side surface selected from a front surface or a left surface or a right surface.
The method of claim 1,
The blower unit is a modular indoor unit comprising a rotation motor that provides rotational force, and a fan connected to the rotational motor to generate suction power while rotating.
The method of claim 9,
When the location of the discharge port is changed, the position of the blowing unit is also changed in the same manner as the discharge port.
The method of claim 1,
A modular indoor unit in which a hollow guide ring for guiding the flow of discharged air is disposed between the discharge port and the blowing unit.
The method of claim 11,
The guide ring is a modular indoor unit having a shape in which a length in a discharge direction of the air gradually increases along a circumferential direction and then decreases.
The method of claim 11,
The guide ring is a modular indoor unit having an extension portion extending outwardly along a circumferential direction so as to be coupled while being in surface contact with the inner surface of the housing.
The method of claim 11,
The guide ring is a modular indoor unit whose diameter is gradually increased at one side adjacent to the blowing unit to form an extension part.
The method of claim 1,
A modular indoor unit, wherein a drain pan having a concave shape from an upper side to a lower side to accommodate a lower portion of the heat exchanger is disposed below the heat exchanger.

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