KR102629023B1 - Ceiling type air conditioner - Google Patents

Abstract

This embodiment includes an indoor unit with a heat exchanger and a blower built in, a drain unit disposed below the heat exchanger, and a plurality of blowing passages having a polygonal shape for guiding the discharge of air that has passed through the heat exchanger; It includes a discharge panel coupled to the indoor unit and guiding the discharge of air that has passed through a plurality of blowing passages, the discharge panel having a plurality of polygonal inlets corresponding to the plurality of blowing passages; an outlet having an arc shape or a circular shape; A connecting passage connecting a plurality of polygonal inlets and outlets is formed.

Description

Ceiling type air conditioner

The present invention relates to a ceiling-type air conditioner, and more specifically, to a ceiling-type air conditioner having an outlet for discharging air to the outside.

An air conditioner is a device that creates a more comfortable indoor environment for users.

An air conditioner can cool or heat a room using a refrigeration cycle device having a compressor, condenser, expansion device, and evaporator through which refrigerant circulates.

Air conditioners can be classified into stand-type air conditioners, wall-mounted air conditioners, and ceiling-type air conditioners depending on their installation location.

Ceiling air conditioners are installed on the ceiling and can discharge cold or warm air into the room.

An air outlet through which air is discharged may be formed in the ceiling-type air conditioner, and a wind direction control member may be disposed at the air outlet to control the wind direction of the air discharged toward the room. The wind direction control member may be rotatably disposed at the air outlet.

KR 10-2007-0060502 A (published on June 13, 2007) KR 10-0897425 B1 (published on May 14, 2009)

Ceiling-type air conditioners according to the prior art are composed of a polygonal indoor unit and a polygonal discharge panel, and there is a problem in that it is difficult to discharge air blown from the polygonal indoor unit through a circular or arc-shaped discharge port.

The purpose of the present invention is to provide a ceiling-type air conditioner that can discharge a plurality of discharge airflows blown downward from a polygonal indoor unit through an arc-shaped or circular outlet with a simple structure.

The purpose of the present invention is to provide a ceiling-type air conditioner that has a simple structure and can convert airflow blown into a circular or arc-shaped outlet.

One embodiment of the present invention includes an indoor unit with a heat exchanger and a blower built in, a drain unit disposed below the heat exchanger, and a plurality of blowing passages having a polygonal shape for guiding the discharge of air that has passed through the heat exchanger; It is coupled to the indoor unit and includes a discharge panel that guides the discharge of air that has passed through a plurality of blowing passages.

The discharge panel includes a plurality of polygonal inlets corresponding to a plurality of blowing passages; an outlet having an arc shape or a circular shape; A connecting passage connecting a plurality of polygonal inlets and outlets is formed.

The horizontal width of the connection passage may repeatedly increase and decrease along the outlet.

The connection passage includes a first area formed below the polygonal inlet and a second area formed below the periphery of the polygonal inlet, the first area and the second area are alternately located along the outlet, and the horizontal direction of the first area The width may be larger than the horizontal width of the second area.

The horizontal width of the first area may gradually decrease as it approaches the second area.

The discharge panel may be formed with a hollow portion that is open in the vertical direction.

The plurality of polygonal entrances include a front entrance and a rear entrance spaced apart in the anteroposterior direction with a hollow part in between; It may include a left entrance and a right entrance spaced apart in the left and right directions with the hollow part in between.

The hollow portion may be alternately formed with flat surfaces and curved surfaces along the inner circumference of the discharge panel.

The upper end of the connection passage may include a first curvature area located below the polygonal inlet and having a first curvature, and a second curvature area located below the periphery of the polygonal inlet and having a second curvature greater than the first curvature.

The outlet may be circular in shape with a third curvature greater than the first curvature.

As the connection passage moves downward, its cross-sectional shape may gradually become closer to a circular shape.

Among the connecting flow paths, the flow path located below the first curvature area may have a shape whose curvature gradually increases toward the bottom.

The outer perimeter of the indoor unit may be a polygon. The outlet may be circular. The outer circumference of the discharge panel may be circular.

The discharge panel may include a main flow body connected to an outer body portion whose upper body portion is larger than the upper body portion and a connection portion. The discharge panel may include an inner euro body disposed below the upper body portion. The discharge panel may include at least one outer cover disposed on an upper portion of the outer body portion.

A polygonal inlet may be formed between the upper body portion, the connection portion, and the outer cover.

The outlet and connection passage may be formed between the inner flow path and the outer body portion.

The upper body portion may be formed as a square with four corners rounded.

The outer circumferential surface of the upper body portion is the upper plane; It may include a lower curved surface that is lower than the upper plane. The outer cover may have one side facing the upper plane and the lower curved surface in the horizontal direction.

The connection portion includes an upper connection portion protruding from the upper body portion; It may include a side connection portion extending downward from the upper connection portion and connected to the outer body portion.

The upper connection portion may have a side edge perpendicular to the upper plane.

The outer body portion may include an outer guide facing the outer circumferential surface of the inner euro body.

The outer guide includes a first guide having a convex outer curved surface toward the inner euro body; It may include a second guide connected to the side connection portion.

The outer cover may be seated on the first guide.

The outer circumferential surface of the inner euro body may include an inlet opposing surface facing the polygonal inlet in the vertical direction and a connection opposing surface facing the connection in the vertical direction. The inlet opposing surface and the connection opposing surface may be formed alternately along the outer circumferential surface of the inner euro body. The inlet opposing surface may be gentler than the connection opposing surface.

It may further include an air guide that is disposed to be raised and lowered on the outer body portion and changes the airflow of the air discharged to the outlet.

In the outer body portion, a slit through which the air guide passes may be open in the vertical direction.

The air guide may have an arc-shaped cross-section. The air guide may include an inner guide surface facing the exit when the air guide is lowered. A plurality of air guides may be arranged along the outlet.

The ceiling-type air conditioner may include an elevating guide disposed on the main flow path body to guide the elevating and lowering of the air guide. The ceiling-type air conditioner may further include a lifting mechanism installed on at least one of the lifting guide, the main euro body, and the outer cover to raise and lower the air guide.

The outer cover may include an upper cover portion that covers the upper surface of the lifting guide and the lifting mechanism. The outer cover may include a euro body portion that extends downward from the upper cover portion and forms a polygonal inlet together with the upper body portion and the connection portion. The outer cover may include a side cover portion extending downward from the upper cover portion and covering the outer circumferential surface of the lifting guide.

According to an embodiment of the present invention, various models can be manufactured and sold while sharing an indoor unit that blows a plurality of discharge air streams, and the manufacturer needs to manufacture indoor units differently for each discharge panel with different discharge air flow switching methods and designs. There is an advantage in reducing manufacturing costs.

In addition, there is an advantage that air sucked through multiple polygonal inlets can spread throughout the circular or ring-shaped outlets, and air can be discharged evenly toward all areas of the room.

Additionally, since the discharge panel is fixed and the air guide is raised and lowered, there is an advantage in that power consumption can be reduced compared to when the discharge panel itself is raised and lowered.

In addition, the horizontal airflow and vertical airflow of the air discharged from a circular or arc-shaped outlet can be determined depending on the height of the air guide, and compared to the case where a rotary wind direction control member such as a vane or blade is rotatably disposed at the outlet, It has the advantage of being able to control airflow smoothly and precisely.

In addition, it is possible to select horizontal airflow by a raised air guide and a vertical airflow by a lowered air guide, which has the advantage of being able to vary between wide cooling by horizontal airflow and concentrated cooling by vertical airflow with a simple structure.

In addition, there is an advantage that the heights of the plurality of air guides can be adjusted differently, the airflow of air dispersed and discharged in various directions can be adjusted independently of each other, and more diverse three-dimensional airflows can be formed.

1 is a perspective view of a ceiling-type air conditioner according to an embodiment of the present invention;
Figure 2 is a bottom view of a ceiling-type air conditioner according to an embodiment of the present invention;
3 is a longitudinal cross-sectional view of a ceiling-type air conditioner according to an embodiment of the present invention;
Figure 4 is a bottom view of the indoor unit shown in Figures 1 and 3;
Figure 5 is a perspective view of the discharge panel shown in Figures 1 to 3;
Figure 6 is a perspective view when the suction panel is separated from the discharge panel shown in Figure 5;
Figure 7 is a perspective view showing the discharge path of the discharge panel according to an embodiment of the present invention;
Figure 8 is a plan view showing the suction flow path and discharge flow path of the discharge panel according to an embodiment of the present invention;
Figure 9 is a cross-sectional view taken along line XX' of Figure 5;
Figure 10 is a cross-sectional view taken along line Y-Y' of Figure 5;
11 is an exploded perspective view showing a discharge panel according to an embodiment of the present invention;
Figure 12 is a perspective view showing the main euro body according to an embodiment of the present invention;
Figure 13 is an enlarged perspective view of a portion of the main euro body according to an embodiment of the present invention;
Figure 14 is a plan view showing the main euro body according to an embodiment of the present invention;
Figure 15 is a bottom view showing the main euro body according to an embodiment of the present invention;
16 is an enlarged perspective view of the inner flow path body according to an embodiment of the present invention;
17 is a plan view of an inner euro body according to an embodiment of the present invention;
Figure 18 is a perspective view showing the outer cover, air guide, and elevator guide according to this embodiment together;
Figure 19 is a perspective view when the outer cover shown in Figure 18 is separated from the elevator guide;
Figure 20 is an enlarged perspective view of the air guide, lifting guide, and lifting mechanism shown in Figure 19;
Figure 21 is a perspective view when the elevator guide shown in Figure 20 is separated;
Figure 22 is a cross-sectional view when the ceiling air conditioner forms a horizontal airflow according to an embodiment of the present invention;
Figure 23 is a cross-sectional view when the ceiling air conditioner forms a vertical airflow according to an embodiment of the present invention;
Figure 24 is a longitudinal cross-sectional view showing a comparative example in which another discharge panel with a plurality of outlets spaced apart is installed instead of the discharge panel according to an embodiment of the present invention.

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

Figure 1 is a perspective view of a ceiling-type air conditioner according to an embodiment of the present invention, Figure 2 is a bottom view of a ceiling-type air conditioner according to an embodiment of the present invention, and Figure 3 is a ceiling view according to an embodiment of the present invention. This is a longitudinal cross-sectional view of the type air conditioner, and Figure 4 is a bottom view of the indoor unit shown in Figures 1 and 3.

The ceiling air conditioner of this embodiment includes an indoor unit (1) and a discharge panel (2). The ceiling-type air conditioner may further include a suction panel (3) installed on the discharge panel (2).

<Indoor unit>

The indoor unit (1) may be equipped with a blower (4) and a heat exchanger (5). The indoor unit (1) can suck air, exchange heat with the refrigerant, and then blow it to the discharge panel (2). The indoor unit 1 may form the main body of a ceiling-type air conditioner.

The indoor unit (1) has an area (15) where air is sucked into the indoor unit (1) and areas (7) (8) (9) (10) where the air inside the indoor unit (1) is blown to the discharge panel (2). It may further include a partitioning indoor unit euro body 13.

The indoor unit 1 may further include a drain unit 14 disposed below the heat exchanger 5.

<Air intake of indoor unit and air discharge of indoor unit>

An inner suction hole 6 may be formed in the indoor unit 1 through which air sucked through the suction panel 3 is sucked into the interior of the indoor unit 1. Additionally, a plurality of blowing passages 7, 8, 9, and 10 may be formed in the indoor unit 1 to guide the discharge of air that has passed through the heat exchanger 5.

The indoor unit 1 can discharge air in a downward direction through a plurality of ventilation passages 7, 8, 9, and 10. The indoor unit 1 may form a plurality of discharge air streams that are blown downward within the indoor unit 1. These plural discharge air streams may be blown in parallel directions.

The outer perimeter of the indoor unit 1 may have a polygonal shape. A plurality of ventilation passages 7, 8, 9, and 10 may be formed on the bottom of the indoor unit 1 to be open in the vertical direction. The indoor unit 1 can discharge a plurality of vertical airflows blowing downward through its bottom.

The indoor unit 1 can be installed suspended from the ceiling. The indoor unit 1 may be supported by a fastening member such as an anchor bolt fixed to the ceiling. A fastening portion 12 to which a fastening member is fastened may be formed in the indoor unit 1, as shown in FIGS. 1 and 4 .

The indoor unit 1 may include a chassis 11 that forms the exterior. The chassis 11 may be an indoor unit body that forms the exterior of the indoor unit.

<Chassis of indoor unit>

The chassis 11 may be mounted on the ceiling using fastening members such as anchor bolts. The chassis 11 may be provided with a protruding fastening portion 12 to which fastening members such as anchor bolts are fastened.

The chassis 11 may be composed of a combination of a plurality of members. The chassis 11 may be formed in a polyhedral shape with an open bottom and a space formed inside.

The chassis 11 may have a space inside which the blower 4 and the heat exchanger 5 are accommodated. The chassis 11 may have a closed shape with each of the four front, rear, left, and right sides and the top surface.

<Blower of indoor unit>

The blower 4 may be placed inside the chassis 11. The blower 4 may be mounted on the top of the chassis 11.

The blower 4 may be mounted on the chassis 11 so that at least a portion of the blower 4 is located inside the heat exchanger 5.

The blower 4 may be mounted on the upper hollow portion 20 of the discharge panel 20, which will be described later.

The blower 4 may be configured as a centrifugal blower that sucks air from its lower side and blows it in a centrifugal direction. The blower 4 may include a motor 41 and a centrifugal fan 42 connected to the motor 41. The blower 4 may include an orifice 43 that guides air sucked into the centrifugal fan 42.

The motor 41 may be mounted so that the rotation shaft connected to the centrifugal fan 42 protrudes downward.

The centrifugal fan 42 may be configured as a turbo fan.

The orifice 43 may be installed to be located inside the chassis 11. The orifice 43 may be installed in the indoor unit euro body 13, which will be described later. The inner suction hole 6 may be formed in the orifice 43.

The air that has passed through the suction panel (3) can be sucked into the centrifugal fan (42) through the inner suction hole (6) of the orifice (43), and can be sucked into the centrifugal fan (42) in the centrifugal direction of the centrifugal fan (42). can be blown through.

Air blown in the centrifugal direction from the centrifugal fan 42 may flow to the heat exchanger 5 disposed surrounding the outer circumference of the centrifugal fan 42 and exchange heat with the heat exchanger 5.

<Heat exchanger of indoor unit>

The heat exchanger 5 may be bent at least once. The heat exchanger 5 may be formed to be smaller in size than the chassis 11 and placed inside the chassis 11.

The heat exchanger 5 may be arranged inside the chassis 11 in a square shape or a hollow cylindrical shape.

The heat exchanger 5 may be installed spaced apart from each other on the inner surface of the chassis 11. A passage through which air is guided to blowing passages 7, 8, 9, and 10, which will be described later, may be formed between the heat exchanger 5 and the inner surface of the chassis 11.

The heat exchanger 5 may be bent to form a space S1 inside which the blower 4 is accommodated. The heat exchanger 5 may include four heat exchange units facing different sides of the chassis 11. The heat exchanger 5 may surround the outer circumferential surface of the blower 4 on the outside of the blower 4.

<Drain unit of indoor unit>

The drain unit 14 may be formed with an open upper surface, and a space in which the lower part of the heat exchanger 5 can be accommodated may be formed.

<Indoor unit Eurobody>

The indoor unit euro body 13 may be coupled to the drain unit 14. A hollow portion 15 through which air can pass in the vertical direction may be formed in the indoor unit flow path body 13. The hollow portion 15 may be an indoor unit air intake port that can suck air from the lower portion of the indoor unit 1 into the interior of the indoor unit 1. The hollow portion 15 may be an area where air is sucked into the indoor unit 1.

The indoor unit euro body 13 may be disposed on the inner lower part of the chassis 11. The indoor unit euro body 13 can form the bottom exterior of the indoor unit 1.

<Multiple ventilation passages of the indoor unit>

Each of the plurality of ventilation passages 7, 8, 9, and 10 formed in the indoor unit 1 may have a polygonal cross-sectional shape. Each of the plurality of ventilation passages 7, 8, 9, and 10 may have a rectangular cross-sectional shape.

The plurality of blowing passages 7, 8, 9, and 10 may be areas through which air inside the indoor unit 1 is blown to the discharge panel 2.

A plurality of ventilation passages (7) (8) (9) (10) may be formed to be spaced apart from the inner suction hole (6).

As shown in FIG. 4, the plurality of blowing passages (7) (8) (9) (10) include a left blowing passage (7), a right blowing passage (8), a front blowing passage (9), It may include a rear blowing passage (10).

As shown in FIG. 4, a plurality of blowing passages (7) (8) (9) (10) may be formed along a rectangular virtual line 17, and a plurality of blowing passages (7) (8) (9) )(10) can be formed one on each side of the rectangular virtual line 17.

The left air passage 7 may be located close to the left side 1A of the left side 1A and the right side 1B of the indoor unit 1 and may be long in the front-back direction.

The right blowing passage 8 may be located close to the right side 1B of the left side 1A and the right side 1B of the indoor unit 1, and may be long in the front-back direction.

The front blowing passage 9 may be located close to the front side 1C of the front side 1C and the back side 1D of the indoor unit 1 and may be long in the left and right directions.

The rear blowing passage 10 may be located close to the rear surface 1D of the front surface 1C and the rear surface 1D of the indoor unit 1 and may be long in the left and right directions.

<Formation location of multiple ventilation passages>

A plurality of blowing passages (7) (8) (9) (10) may be formed in the indoor unit euro body 13, and a plurality of blowing passages (7) (8) (9) (10) may be formed in the indoor unit euro body (13). 13) can be formed to be spaced apart from each other.

A plurality of blowing passages (7) (8) (9) (10) may be formed between the indoor unit flow path body (13) and the inner surface of the chassis (11), and a plurality of blowing passages (7) (8) (9) (10) may be formed between the indoor unit euro body 13 and the inner surface of the chassis 11 to be spaced apart from each other.

The plurality of ventilation passages (7) (8) (9) (10) may be four opening areas with different positions and parallel opening directions, and the indoor unit (1) has these plurality of ventilation passages (7) (8). (9)(10) Air may be discharged through.

The indoor unit 1 may be a 4-way discharge type indoor unit whose discharge directions form four vertical airflows parallel to each other.

<Discharge panel>

The discharge panel 2 may have a circular outer circumference 2A. The discharge panel 2 may have a flat bottom surface 2B.

The discharge panel 2 may be coupled to the indoor unit 1 and may guide air that has passed through the plurality of blowing passages 7, 8, 9, and 10 to be discharged to the outside. The discharge panel (2) may be disposed below the indoor unit (1) together with the suction panel (3). The discharge panel (2) together with the suction panel (3) may form a lower body assembly disposed below the indoor unit (1).

The discharge panel 2 may be coupled to the lower part of the indoor unit 1, and may guide air blown downward through a plurality of blowing passages 7, 8, 9, and 10 into the room. .

The discharge panel 2 can receive air blown in four directions parallel to each other from the indoor unit 1 and guide the discharge around the lower part of the discharge panel 2.

The discharge panel (2) converts the airflow of air blown vertically, especially downwardly, from the indoor unit (1) into the horizontal direction (H1) to guide discharge, or at an acute angle to the horizontal direction (H), as shown in FIG. The discharge can be guided by switching to the lower inclined direction (H2) having an inclination angle (θ) of .

The discharge panel 2 may be composed of a combination of a plurality of members 50, 60, 70, and 90.

The ceiling-type air conditioner may include an air guide 100 that is positioned to be raised and lowered on the discharge panel 2 and guides air passing through the outlet 25. In addition, the ceiling-type air conditioner includes a lifting guide 110 that guides the air guide 100 up and down; It may further include a lifting mechanism 120 that elevates the air guide 100.

As shown in FIG. 3, the discharge panel 2 has a slit 57 through which the air guide 100 can be lowered around the outlet 25 of the discharge panel 2 or raised into the interior of the discharge panel 2. This can be formed.

Figure 5 is a perspective view of the discharge panel shown in Figures 1 to 3, and Figure 6 is a perspective view when the suction panel is separated from the discharge panel shown in Figure 5. Figure 7 is a perspective view showing the discharge flow path of the discharge panel according to an embodiment of the present invention, Figure 8 is a plan view showing the suction flow path and discharge flow path of the discharge panel according to an embodiment of the present invention, and Figure 9 is Figure 5. is a cross-sectional view taken along line X-X', and Figure 10 is a cross-sectional view taken along line Y-Y' of Figure 5.

<Discharge panel>

A suction passage 16 may be formed in the discharge panel 2 to guide air that has passed through the suction panel 3 into the interior of the indoor unit 1. Additionally, a discharge passage 18 may be formed in the discharge panel 2 to guide the air discharged from the plurality of blowing passages 7, 8, 9, and 10 into the room.

<Suction path of discharge panel>

A suction passage 16 may be formed in the discharge panel 2 to guide the air passing through the suction panel 3 to the hollow portion 15 (see FIG. 3) of the indoor unit 1. A hollow portion may be formed in the discharge panel 2 through which air passing through the suction panel 3 is sucked into the interior of the indoor unit 1. The hollow portion of the discharge panel 2 may be formed to penetrate the center of the discharge panel 2 in the vertical direction. The hollow portion may be the suction passage 16 of the discharge panel 2. Hereinafter, the suction passage of the discharge panel 2 and the hollow portion of the discharge panel 2 will be described using the same reference numeral '16'.

As shown in FIG. 8, the suction passage 16 may be located inside the discharge passage 18 and may be formed separately from the discharge passage 18.

The suction passage 16 may have a circular or square cross-sectional shape in the horizontal direction. The rectangular shape of the suction passage 16 may include a rectangular shape close to a circular shape. Here, a quadrangle that is close to a circle may mean a quadrangle that has two pairs of opposite sides and whose four corners are rounded.

The suction passage (H) with a circular cross-sectional shape is smaller than the suction passage (16) with a square cross-sectional shape, and the suction passage (16) with a square cross-sectional shape has a larger suction area inside the discharge panel (2). This can help ensure rapid intake of air.

As shown in FIGS. 5 and 8, the ceiling-type air conditioner can accommodate electrical components 17 such as sensors, motors, and PCBs in the suction passage 16. In this case, the electrical components 17 are It can be placed in the suction passage 16, which has a square or close to square cross-sectional shape, so as not to interfere with the flow of air as much as possible.

On the other hand, when the shape of the electric component 17 is square, it may not be easy to install the square electric component 17 in the suction passage H, which has a circular cross-sectional shape. Additionally, the area where the square electric component 17 blocks the circular suction passage H may be excessive, and the amount of air intake through the circular suction passage H may be reduced.

That is, it is desirable for the suction passage 16 of the discharge panel 2 to have a square cross-sectional shape or a shape as close to a square as possible.

<Discharge flow path of discharge panel>

At least one inlet may be formed in the discharge panel 2. The discharge panel 2 may be formed with a plurality of ventilation passages 7, 8, 9, and 10 and a plurality of inlets 21, 22, 23, and 24 corresponding to them. An arc-shaped or circular-shaped outlet 25 may be formed in the discharge panel 2. A connection passage 26 may be formed in the discharge panel 2 to connect a plurality of inlets 21, 22, 23, and 24 and the outlet 25.

The discharge passage 18 of the discharge panel 2 may include a plurality of inlets 21, 22, 23, and 24, a connection passage 26, and an outlet 25.

Air discharged from the ventilation passages (7) (8) (9) (10) of the indoor unit (1) may flow into the connection passage (26) through a plurality of inlets (21) (22) (23) (24). The air that has passed through the connection passage 26 can be discharged to the outside of the discharge panel 2 through the outlet 25.

<Inlet of discharge panel>

The inlets 21, 22, 23, and 24 formed in the discharge panel 2 may correspond 1:1 to the blowing passages 7, 8, 9, and 10 formed in the indoor unit 1.

The inlets 21, 22, 23, and 24 formed in the discharge panel 2 are the left inlet 21 communicating with the left blowing passage 7 in the up and down direction, and the left inlet 21 communicating with the right blowing passage 8 in the up and down direction. A right inlet (22) that communicates, a front inlet (23) that communicates in the up and down direction with the front blow passage (9), and a rear inlet (24) that communicates in the up and down direction with the rear blow passage (10). It can be included.

The left inlet 21 and the right inlet 22 may be spaced apart in the left and right directions with the hollow portion 16 formed in the discharge panel 2 interposed therebetween. The left inlet 21 and the right inlet 22 may be formed to be long and parallel to each other. Each of the left inlet 21 and the right inlet 22 may be formed to be long in the front-to-back direction.

The front inlet 23 and the rear inlet 24 may be spaced apart in the front-back direction with the hollow portion 16 formed in the discharge panel 2 interposed therebetween. The front entrance 23 and the rear entrance 24 may be long and parallel to each other. Each of the front entrance 23 and the rear entrance 24 may be long in the left and right directions.

<Size and shape of the entrance>

The cross-sectional size of each of the plurality of inlets 21, 22, 23, and 24 may be the same as the cross-sectional size of each of the plurality of blowing passages 7, 8, 9, and 10.

The cross-sectional shape of the inlets 21, 22, 23, and 24 may be the same as the cross-sectional shape of the ventilation passages 7, 8, 9, and 10.

The cross-sectional shape of the inlets 21, 22, 23, and 24 may be polygonal. Here, the polygonal shape of the inlets 21, 22, 23, and 24 may include a shape in which at least one corner portion is rounded to have a predetermined curvature.

The cross-sectional shape of the inlets 21, 22, 23, and 24 may be square, particularly rectangular, like the cross-sectional shape of the blowing passages 7, 8, 9, and 10. Here, the rectangular shape of the inlets 21, 22, 23, and 24 may be elongated in the horizontal direction, and may include a shape in which at least one side or at least one vertex is rounded.

Hereinafter, the inlets 21, 22, 23, and 24 will be described as polygonal inlets 21, 22, 23, and 24.

The plurality of polygonal inlets 21, 22, 23, and 24, like the ventilation passages 7, 8, 9, and 10 of the indoor unit 1, have a rectangular imaginary line 19, Figures 7 and 8. reference), and a plurality of such polygonal inlets 21, 22, 23, and 24 may be formed, one on each side of the rectangular virtual line 19.

The rectangular virtual line 19 of the discharge panel 2 shown in FIGS. 7 and 8 and the rectangular virtual line 17 of the indoor unit 1 shown in FIG. 4 have the same size and can coincide in the vertical direction. .

<Exit of discharge panel>

The outlet 25 may be an air outlet through which air conditioned in the ceiling-type air conditioner is discharged to the outside of the ceiling-type air conditioner.

The number of outlets 25 may be smaller than the polygonal inlets 21, 22, 23, and 24. The outlet 25 may be larger than each of the plurality of polygonal inlets 21, 22, 23, and 24.

<Shape and number of exits>

The outlet 25 may be arc-shaped, and in this case, a plurality of outlets may be formed in the discharge panel 2. When the outlet 25 is arc-shaped, the plurality of outlets 25 may be spaced apart in the circumferential direction of the discharge panel 2 and may be formed along a circular virtual line. When the outlet 25 has an arc shape, the arc shape may include an arc shape such as a 'C' shape, an arc shape, or a semicircle shape.

The outlet 25 may have a circular shape, and in this case, one outlet 25 may be formed in the discharge panel 2. Here, when the outlet 25 is circular, circular may mean including an oval shape, and its cross-sectional shape may be formed in a closed loop shape.

The outlet 25 may be an opening through which air passing through the connection passage 26 is discharged to the outside of the discharge panel 2.

The discharge panel 2 may be exposed to the interior while coupled to the lower part of the indoor unit 1, and the outlet 25 may be exposed to the interior together with the bottom of the discharge panel 2.

<Connection flow path of discharge panel>

The connection passage 26 can guide air introduced through the polygonal inlets 21, 22, 23, and 24 to the outlet 25.

The connection passage 26 may be an airflow conversion discharge passage that converts the airflow of air sucked through the plurality of polygonal inlets 21, 22, 23, and 24 and guides it to the outlet 25. The connection passage 26 may be an airflow mixing discharge passage that mixes the air sucked through the plurality of polygonal inlets 21, 22, 23, and 24 and guides it to the outlet 25.

<Relationship between inlet and connection flow path and relationship between outlet and connection flow path>

A plurality of polygonal inlets 21, 22, 23, and 24 may be located at one end of the connection passage 26 in the air flow direction, and the outlet 25 may be located at the other end of the connection passage 26 in the air flow direction. can do.

<Shape of connection channel>

The connection passage 26 may have a closed-loop cross-sectional shape in the horizontal direction. The connection passage 26 may be formed in a shape whose cross-sectional area gradually increases as it goes downward.

The connection passage 26 may be formed to convert a vertical air flow into a horizontal air flow, and for this purpose, its vertical cross-sectional shape may be curved. The connection passage 26 may have a vertical cross-sectional shape that spreads outward as it goes downward.

Referring to Figures 7 and 8, the rectangular virtual line 19 where the multiple polygonal inlets 21, 22, 23, and 24 are located is not only higher than the outlet 25, but also smaller than the outlet 25. It can be. In this case, the first distance D1 between the side of the quadrangular virtual line 19 and the outlet 25 may be different from the second distance D2 between the vertex of the quadrangular virtual line 19 and the outlet 25. there is.

The first distance D1 may be longer than the second distance D2, and the distance between the square virtual line 19 and the circular exit 25 may repeat increases and decreases along the circumferential direction. The first distance D1 may gradually decrease as it gets closer to the vertex of the virtual rectangular line 19.

Considering this distance difference (D1-D2), the connection passage 26 may be formed so that its horizontal widths (D3) and (D4) in the circumferential direction are not the same.

The horizontal widths D3, D4 of the connection passage 26 may alternately increase and decrease along the outlet 25, and may repeat the increase and decrease.

The connection passage 26 is a first area 26A formed below the polygonal inlets 21, 22, 23, and 24 according to the positional relationship with the polygonal inlets 21, 22, 23, and 24. and a second area 26B formed below the periphery of the polygonal entrances 21, 22, 23, and 24.

The second area 26B may be located next to the first area 26A in the horizontal direction.

The first area 26A and the second area 26B may be alternately positioned along the outlet 25 in the circumferential direction of the discharge panel 2.

Referring to FIGS. 7 and 8 , the horizontal width D1 of the first area 26A may be larger than the horizontal width D2 of the second area 26B. Here, the comparison of the horizontal widths D1 and D2 is a comparison at the same height.

The horizontal width D1 of the first area 26A may gradually decrease as it approaches the second area 28B.

Referring to FIG. 7, the horizontal width D3 of the first area 26A increases and then decreases clockwise along the outlet 25, and the horizontal width D4 of the second area 26B increases and decreases clockwise along the outlet 25. It can be decreased and increased clockwise along (25). In this case, the average horizontal width D3 of the first area 26A may be greater than the average horizontal width D4 of the second area 26B.

The upper end (26C) of the connection passage (26) has a plurality of polygonal inlets (21) (22) (23) (24) among the polygonal inlets (21) (22) (23) (24) and outlets (25) It may be a closer area. The cross-sectional shape of the upper end 26C is generally formed as a square ring shape, but the vertex of the upper end 26C may be curved.

The lower end of the connection passage 26 may be an outlet 25, and its cross-sectional shape may be circular.

In order to correspond to the shape of the upper end (26C) and the shape of the outlet 25, the connecting passage 26 may be formed from a square ring shape to a shape that gradually approaches a circular shape as it goes from the upper end 26C to the outlet 25. there is.

The upper end 26C of the connection passage 26 is located below the polygonal inlet 21, 22, 23, and 24 and has a region having a first curvature (hereinafter referred to as the first curvature region 25D), It is located below the periphery of the polygonal inlet 21, 22, 23, and 24 and may include an area having a second curvature greater than the first curvature (hereinafter referred to as the second curvature area 26E).

The second curved area 26E may be an area extending horizontally from the first curved area 26D. That is, the first curved area 26D and the second curved area 26E may be alternately positioned in the horizontal direction along the upper end 26C of the connection passage 26.

And, the outlet 25 may have a third curvature that is greater than the first curvature. The third curvature of outlet 25 may be equal to, smaller than, or greater than the second curvature.

As the connection passage 26 moves downward, its cross-sectional shape may gradually become closer to a circular shape.

Among the connection passages 26, the passage located below the first curvature area 26D may have a shape whose curvature gradually increases downward.

Among the connection passages 26, the passage located below the second curvature area 26E may have a constant, gradually decreasing, or gradually increasing curvature as it goes downward.

When the second curvature is the same as the third curvature, the curvature of the passage located below the second curvature area 26E of the connection passage 26 may be maintained constant in the downward direction.

When the second curvature is smaller than the third curvature, the curvature of the passage located below the second curvature area 26E of the connection passage 26 may gradually increase in the downward direction.

When the second curvature is greater than the third curvature, the curvature of the passage located below the second curvature area 26E of the connection passage 26 may gradually decrease in the downward direction.

When the ceiling air conditioner operates, air passing through the plurality of polygonal inlets 21, 22, 23, and 24 may fall into the first area 26A, and some of this air may fall into the first area 26A. It may flow from (26A) to the outlet (25) and then be discharged through the outlet (25). Meanwhile, the remainder of the air that fell into the first area 26A may flow from the first area 26A to the second area 26B and then be discharged from the second area 26B through the outlet 25. .

That is, in this embodiment, the air flowing into the plurality of polygonal inlets 21, 22, 23, and 24 can be discharged to the outlet 25 while spreading widely in the horizontal direction in the connecting passage 26, and the ceiling type air conditioner can discharge conditioned air to the entire area of the outlet (25).

Figure 11 is an exploded perspective view showing a discharge panel according to an embodiment of the present invention, Figure 12 is a perspective view showing a main flow path body according to an embodiment of the present invention, and Figure 13 is a main flow path according to an embodiment of the present invention. It is an enlarged perspective view of a part of the body, FIG. 14 is a plan view showing the main euro body according to an embodiment of the present invention, FIG. 15 is a bottom view showing the main euro body according to an embodiment of the present invention, and FIG. 16 is an enlarged perspective view of the inner flow path body according to an embodiment of the present invention, and Figure 17 is a plan view of the inner flow path body according to an embodiment of the present invention.

The discharge panel 2 may include a main euro body 50 and an inner euro body 60 coupled to the main euro body 50. The discharge panel 2 may further include an outer cover 70 that guides the air passing through the blowing passages 7, 8, 9, and 10 to the connection passage 26. The discharge panel 2 may further include a deco cover 90 coupled to the main euro body 50.

The discharge panel 2 allows air to flow in and pass between a pair of spaced apart guides 54 and 64. Air may be discharged and guided in the direction guided by the pair of guides 54 and 64.

<A pair of guides>

One of the pair of guides 54 and 64 may be formed on the main euro body 50, and the other of the pair of guides 54 and 64 may be formed on the inner euro body 60. there is.

This pair of guides 54 and 64 includes an outer guide 54 located relatively outside, and an inner guide 64 located inside the outer guide 54 and spaced apart from the outer guide 54. can do.

<Location and connection path of outer guide and inner guide>

The outer guide 54 may be formed on the main euro body 50. The outer guide 54 may be formed on the inner circumferential surface of the main euro body 50.

And, the inner guide 64 may be formed on the inner euro body 60. The inner guide 64 may be formed on the outer circumferential surface of the inner euro body 60.

The connection passage 26 may be formed between the inner guide 64 and the outer guide 54. The connection passage 26 can guide the air flowing into the inlet 21, 22, 23, and 24 to the outlet 25.

<Hollow part of discharge panel>

The discharge panel 2 may be formed through a hollow portion 16 that is open in the vertical direction, and the hollow portion 16 has alternating flat surfaces F1 and curved surfaces R1 along the inner circumference of the discharge panel 2. It can be formed as

In the hollow portion 16, a pair of planes F1 orthogonal to each other may be connected by a curved surface R1, and a pair of curved surfaces R1 may be connected by a plane F1. The hollow portion 16 may be formed by four flat surfaces F1 and four curved surfaces R1.

The hollow portion 16 may be formed in the main euro body 50 and the inner euro body 60, respectively. The upper hollow portion 20 formed in the main euro body 50 and the lower hollow portion 68 formed in the inner euro body 60 may communicate in the vertical direction.

The upper hollow portion 20 and the lower hollow portion 68 may have the same shape, and each may include a flat surface F1 and a curved surface R1, as shown in FIGS. 14 to 16. .

<Main Eurobody>

An upper hollow portion 20 penetrating in the vertical direction may be formed in the main euro body 50. The upper hollow portion 20 may function as an intake passage 16 through which air passing through the suction panel 3 is sucked into the indoor unit 1. The upper hollow portion 20 may be located on the upper side of the suction panel 3 and may be located below the inner suction hole 6 of the indoor unit 1.

The main euro body 50 may have an opening forming a plurality of inlets 21, 22, 23, and 24 between the outer circumference and the upper hollow portion 20.

<Size of main euro body>

The main flow path body 50 may be formed larger than the indoor unit 1 and may cover the indoor unit 1 at the lower part of the indoor unit 1. The main flow body 50 may include an area facing the indoor unit 1 in a vertical direction and an area facing the periphery of the indoor unit 1 in a vertical direction.

<Main Eurobody service hole and deco cover>

A service hole 59 may be formed in the main euro body 50 facing the fastening part 12 that fastens the indoor unit 1 to the ceiling. Service holes 59 may be formed in the main euro body 50 as many as the number of fastening portions 12. The service hole 59 may be an opening formed to be open in the vertical direction. The service hall 59 may have an open side. The discharge panel 2 may further include a decoration cover 90 that covers the service hole 59. The decoration cover 90 can form the outer edge of the discharge panel 2.

<Detailed structure of the main eurobody>

The main euro body 50 may include an upper body portion 51, an outer body portion 52, and a connection portion 53.

The upper body portion 51 may be formed with an upper hollow portion 20 penetrating in the center in the vertical direction. The upper body portion 51 may be connected to the outer body portion 52, which is larger than the upper body portion 52, through a connection portion 53.

The outer body portion 52 may be formed larger than the upper body portion 51 . The height of the outer body portion 52 may be lower than the height of the upper body portion 51.

The connection part 53 can connect the upper body part 51 and the outer body part 52 of different heights and sizes.

<Upper body part of main Eurobody>

The upper body portion 51 may be formed in a closed loop cross-sectional shape. The inner peripheral surface 51A of the upper body portion 51 may form an upper hollow portion 20.

The upper hollow portion 20 may have a square cross-sectional shape, but the four vertices may be rounded. The inner peripheral surface 51A of the upper body portion 51 may have flat surfaces F1 and curved surfaces R1 alternately formed along the inner peripheral surface.

The upper body portion 51, together with the outer cover 70, may form the upper passage of the connection passage 26.

The upper body portion 51 may form polygonal inlets 21, 22, 23, and 24, and the portion located below the polygonal inlets 21, 22, 23, and 24 is the outer cover. Together with (70), the upper passage of the connection passage (26) can be formed.

The outer peripheral surface 51B of the upper body portion 51 may form polygonal inlets 21, 22, 23, and 24 together with the connecting portion 53 and the outer cover 70. Polygonal inlets 21, 22, 23, and 24 may be formed between the upper body portion 51, the connection portion 53, and the outer cover 70.

The outer peripheral surface 51B of the upper body portion 51 may be spaced apart from one surface 70A of the outer cover 70. The polygonal inlets 21, 22, 23, and 24 may be formed to penetrate in the vertical direction between the outer circumferential surface 51B of the upper body portion 51 and one surface 70A of the outer cover 70. .

The upper body portion 51 may be formed in a square shape, but the four corners may be rounded.

The outer peripheral surface of the upper body portion 51 may include an upper plane (F2) and lower curved surfaces (R3) (R4) lower than the upper plane (F2). Additionally, the outer cover 70 may have one surface 70A facing the upper plane F2 and the lower curved surfaces R3 and R4 in the horizontal direction.

The upper plane F2, together with the connecting portion 53 and the outer cover 70, may form a polygonal inlet 21, 22, 23, or 24.

The lower curved surfaces R3 and R4 may form the upper flow path of the connection flow path 26 together with the outer cover 70.

The upper body portion 51 may include an upper guide 51C having an upper plane F2 formed thereon, and a lower guide 51D having lower curved surfaces R3 and R4 formed along the outer circumferential surface.

The upper plane F2 may be a horizontally long plane and may face one side 70A of the outer cover 70 in the horizontal direction.

The polygonal inlets 21, 22, 23, and 24 are formed in an approximately rectangular shape between the upper plane F2, the side end 53C of the connection portion 53, and one surface 70A of the outer cover 70. You can.

The lower curved surfaces R3 and R4 may be curved surfaces with a curvature close to a plane. Air passing through the polygonal inlets 21, 22, 23, and 24 may be guided to the lower curved surfaces R3 and R4.

The lower curved surfaces R3 and R4 include a region (R3, hereinafter referred to as the third region) facing one side 70A of the outer cover 70 in the horizontal direction, and an area facing the connection portion 53 in the horizontal direction ( R4, hereinafter referred to as the fourth region) may be included.

The area between the third area R3 and one surface 70A of the outer cover 70 may be an area where air passing through the polygonal inlets 21, 22, 23, and 24 flows in.

Additionally, the space between the fourth region R4 and the connection portion 53 may be a space where air sucked through adjacent polygonal inlets can be mixed.

The third region (R3) and the fourth region (R4) may have different curvatures.

The third region R3 may be a curved surface close to a plane, and the curvature of the third region R3 may be smaller than the curvature of the fourth region R4.

The fourth region (R4) may have a more curved shape than the third region (R3).

An empty space may be formed in the radial direction of the discharge panel 2 between the lower curved surfaces R3 and R4 of the upper body portion 51 and one surface 70A of the outer cover 70, and the horizontal space of this empty space may be formed. The direction width may repeatedly increase and decrease in the circumferential direction of the discharge panel (2).

<Outer body part>

The main euro body 50 may include an outer guide 54 that is spaced apart from the inner guide 64. The outer guide 54 may include an outer curved surface 55 that is convex toward the inner guide 64. The outer guide 54 may be part of the outer body portion 52.

The outer body portion 52 may include a mounting portion 56 formed in a ring shape and an outer guide 54 formed around the inner circumference of the mounting portion 56.

<Mounting part of outer body>

The mounting portion 56 may be formed in a ring-shaped plate shape. The mounting portion 56 may be equipped with an outer cover 70, a decor cover 90, and an elevating guide 110.

<Outer Body Department Outerwear Guide>

The outer guide 54 may face the outer circumferential surface of the inner euro body 60. An outer curved surface 55 that is convex toward the inner euro body 60 may be formed on the outer guide 54.

The outer guide 54 may include a first guide 54A in which an outer curved surface 55 is convex toward the inner euro body 60. The outer guide 54 may further include a second guide 54B connected to a side connection portion 53B, which will be described later.

The first guide 54A and the second guide 54B may be alternately positioned along the outer guide 54.

The first guide 54A may be an extension whose size gradually expands toward the bottom.

The outer curved surface 55 may be a surface of the first guide 54A that faces the outer circumferential surface of the inner euro body 60.

The second guide 54B may be a non-expandable portion whose size is constant in the vertical direction.

<Connection part>

The upper part of the connection part 53 may be connected to the upper body part 51, and the lower part may be connected to the outer body part 52.

The upper part of the connection part 53 may be connected to the outer circumference of the upper body part 51, and the lower part may be connected to the top of the outer body part 52. The lower part of the connection part 53 may be connected to the upper end of the outer guide 54.

The connection portion 53 may include an upper connection portion 53A and a side connection portion 53B.

The upper connection portion 53A may extend horizontally from the upper outer circumference of the upper body portion 51. The upper connection portion 53A may be formed perpendicular to the side connection portion 53B.

The upper connection portion 53A may face the outer circumferential surface of the inner euro body 60 in the vertical direction.

The upper connection portion 53A may have a side end 53C perpendicular to the upper plane F2, and the polygonal inlets 21, 22, and 23 may be connected to the upper plane F2 of the upper body portion 51 and the upper plane F2. It may be formed into a polygon by the side end 53C of the connection portion 53A and one surface 70A of the outer cover 70.

The side connection portion 53B may extend downward from the upper connection portion 53A and be connected to the outer body portion 52. The side connection portion 53B may be connected to the upper part of the outer body portion 52.

The side connection portion 53B may be formed to be long in the vertical direction and may face the fourth region R4 formed on the outer peripheral surface 51B of the upper body portion 51 in the horizontal direction.

<Number and location of connections>

A plurality of connection portions 53 may be formed between the upper body portion 51 and the outer body portion 52. The plurality of connection portions 53 may be formed to be spaced apart from each other. The number of connection parts 53 may be the same as the number of inlets 21, 22, 23, and 24. The discharge panel 2 may have an inlet formed between a pair of adjacent connecting portions 53.

<Internal space of the main Eurobody>

A space (S2) with an open bottom may be formed inside the main euro body 50. The main euro body 50 may have a space S2 with an open bottom formed inside the outer guide 54. The space S2 of the main euro body 50 may be formed to be larger than the outer circumference of the upper hollow portion 20. The space S2 of the main euro body 50 may be an empty space surrounded by the connection portion 53 and the outer guide 54.

The discharge panel 2 may be formed with a slit 57 through which the air guide 100 passes. A slit 57 may be formed on the side of the outlet 25 .

<Slit in the main Eurobody>

A slit 57 through which the air guide 100 passes may be open in the vertical direction in the main euro body 50. The slit 57 may be formed in the outer body portion 52. The slit 57 may be formed in the mounting portion 56 of the outer body portion 52. The slit 57 may have the same shape as the air guide 100. When the shape of the air guide 100 is arc-shaped, the slit 57 may be arc-shaped. The slit 57 may be formed slightly larger than the air guide 100. The number of slits 57 may be the same as the number of air guides 100.

A pair of ribs 58 may be formed to be spaced apart from each other on the main euro body 50, and a slit 57 may be formed between the pair of ribs 58 in the vertical direction. The air guide 100 can be lifted and guided by a pair of ribs 58 while passing through the slit 57, and the air guide 100 can be lifted and lowered more stably by the pair of ribs 58. .

The outer body portion 52 may form the lower flow path of the inner flow path 60 and the connecting flow path 26.

The lower end of the outer body portion 52 may form the lower end of the outer circumferential surface of the inner euro body 60 and the outlet 25.

<Inner Eurobody>

The inner euro body 60 may be disposed below the upper body portion 51.

The inner flow path 60 may be coupled to the periphery of the upper hollow portion 20 to form the main flow path 26 and the outlet 25 with the main flow path 50. The outlet 25 and the connection passage 26 may be formed between the inner flow path body 60 and the outer body portion 52.

The inner euro body 60 may have its upper surface 69 coupled to the periphery of the upper hollow portion 20.

The upper surface 69 of the inner euro body 60 may be in contact with the lower surface of the upper body portion 51.

The inner euro body 60 may be formed to gradually expand downward.

The inner euro body 60 may have a lower hollow portion 68 through which air passes in the vertical direction. The lower hollow portion 68 may function as an intake passage 16 through which air passing through the intake panel 3 is sucked into the indoor unit 1.

When the blower (4) is driven, the air passing through the lower hollow part (68) of the inner flow path body (60) passes through the upper hollow part (20) of the main flow path body (50) and can be sucked into the indoor unit (1). there is.

The outer cover 70 may be combined with the main euro body 50 and may form an inlet 21, 22, 23, or 24 together with the main euro body 50.

The outer circumferential surface of the inner euro body 60 has an inlet opposing surface 65A facing the polygonal inlets 21, 22, 23, and 24 in the vertical direction, and a connection part facing the connection part 53 in the vertical direction. It may include an opposing surface 65B.

The inlet opposing surface 65A and the connecting portion opposing surface 65B may be formed alternately along the outer circumferential surface of the inner euro body 60.

The inlet opposing surface 65A may be gentler than the connection opposing surface 65A.

The upper surface 69 of the inner euro body 60 is overall formed in a square ring shape, but the vertex portion may be curved.

The outer perimeter of the upper surface (69) of the inner euro body (60) includes a fifth region (R5) having the same curvature as the third region (R3) and a sixth region (R6) having the same curvature as the fourth region (R4). can do. The fifth region (R5) and the sixth region (R6) may be alternately positioned along the outer circumference of the inner euro body 60.

The lower end 67 of the inner euro body 60 may have a circular shape.

The outer circumferential surface 65 of the inner euro body 60 is formed to correspond to the upper outer circumferential shape of the inner euro body 60 and the shape of the lower end 67 of the inner euro body 60. As it moves from the outer circumference to the lower end 67 of the inner euro body 60, it may be formed from a square ring shape to a shape that gradually approaches a circular shape.

<Location and shape of inner euro body>

The upper part of the inner euro body 60 may be inserted and accommodated in the space S2 of the main euro body 50 and the lower end may be lower than the main euro body 50.

The inner euro body 60 may be formed to gradually expand downward. The upper end of the inner guide 64 may face the outer guide 54 in a horizontal direction. Additionally, the lower end of the inner guide 64 may face the outer guide 54 in the vertical direction.

The inner euro body 60 may have an inner guide 64 formed on its outer circumferential surface. An inner curved surface 65 may be formed on the outer circumference of the inner euro body 60. The inner guide 64 may include an inner curved surface 65. The outer circumferential surface of the inner guide 64 may be the inner curved surface 65, and hereinafter, the outer circumferential surface and the inner curved surface of the inner guide 64 will be described using the same reference numeral '65'.

The inner guide 64 may include a concavely recessed inner curved surface 65. The upper end 66 of the inner curved surface 65 may face the outer curved surface 55 in the horizontal direction. The top 66 of the inner curved surface 65 may be the outer perimeter of the top surface 69 of the inner euro body 60. The lower end 67 of the inner curved surface 65 may face the outer curved surface 55 in the vertical direction.

Among the connection passages 26, the lower passage may be formed between the inner guide 64 and the outer guide 54.

The outlet 25 may be formed between the lower outer circumference of the inner guide 64 and the outer guide 54.

The inner euro body 60 may include an outlet end 67 spaced apart from the outer guide 54 in the vertical direction. The outlet end 67 may be the same as the lower end 67 of the inner curved surface 65, and hereinafter, the lower end of the inner curved surface 65 and the outlet end will be described using the same reference numeral '67'.

<Inner Eurobody exit end and outer guide>

The outlet end 67 may form an outer guide 54 and an outlet 25. That is, the outlet 25 may be formed between the outlet end 67 and the outer guide 54.

The outlet end 67 of the inner euro body 60 may be the lower outer circumference of the inner guide 64. The lower end of the inner guide 64 may be the lower outer circumference of the inner guide 64, and the outlet end 67 of the inner euro body 60 may be the lower end of the inner guide 64.

The inner euro body 60 may be composed of a combination of a plurality of members.

The inner euro body 60 is a flow path forming body 61 in which at least a portion of the outer circumferential surface is disposed to face the main flow path body 50 to form the main flow path body 50, the outlet 25, and the connecting flow path 26. ) and a strength reinforcement body 62 combined with the flow path forming body 61.

<Fluid forming body>

The upper end of the flow path forming body 61 may be coupled to the lower part of the upper body portion 51. The flow path forming body 61 may have a hollow portion formed therein that is open in the vertical direction. The outer circumference of the flow path forming body 61 may be the inner guide 64.

<Strength reinforced body>

The strength reinforcement body 62 is formed to protrude upwardly on the inner circumference of the lower reinforcement body 62A and the lower reinforcement body 62A, which is coupled to the lower surface of the flow path forming body 61. It may include an upper reinforcement body 62 interpolated into the hollow part. The strength reinforcement body 62 may include a strength reinforcement rib 62C protruding from the upper reinforcement body 62. The strength reinforcing rib 62C may be inserted into a fitting slot formed on the inner circumferential surface of the flow path forming body 61 and may be coupled to the flow path forming body 61.

<Outer Cover>

The outer cover 70 may be mounted to be spaced apart from the upper body portion 51. The outer cover 70 may be disposed on at least one of the lifting guide 110 and the outer body portion 52.

At least one outer cover 70 may be disposed on the upper part of the outer body portion 52.

The outer cover 70 may cover the lifting mechanism 120. The outer cover 70 may be a lifting mechanism cover that protects the lifting mechanism 120. The outer cover 70 can cover the lifting mechanism 120 and the lifting guide 110 together.

The outer cover 70 may be seated on the first guide 54A, and may guide the air flowing into the polygonal inlets 21, 22, 23, and 23 to the first guide 54A, and The air flowing into the inlet may be guided to the first guide (54A) along one surface (70A) of the outer cover (70), and this air may be guided to the outlet (25) along the outer curved surface (55) of the first guide (54A). ) can flow.

<Detailed structure of the outer cover>

The upper portion of one surface 70A of the outer cover 70 forms an entrance, and the upper portion of one surface 70A may be flat rather than curved.

The outer cover 70 includes an upper cover part 71 that covers the upper surface of the lifting guide 110 and the lifting mechanism 120, a euro body part 72 extending downward from the upper cover part 71, and an upper It may include a side cover part 73 that extends downward from the cover part 71 and covers all or part of the outer circumferential surface of the lifting guide 110.

<Euro body part of outer cover>

The euro body portion 72 may form the main euro body 50 and the inlet 21, 22, 23, and 24. The euro body portion 72 may be disposed on the outer guide 54 to be spaced apart from the upper body portion 51. The euro body portion 72 may face the outer surface of the upper body portion 51, and the inlet 21, 22, 23, 24 is provided between the outer surface of the upper body portion 51 and the euro body portion 72. ) can be formed.

The number of outer covers 70 may be equal to the number of inlets 21, 22, 23, and 24.

The flow path body portion 72 may form the upper flow path of the connecting flow path 26 together with the upper body portion 51 and the connecting portion 53. The lower end of the euro body portion 72 may be in contact with the upper end of the outer guide 54. The lower end of the euro body portion 72 may be supported by being seated on the upper end of the outer guide 54. Among the connection passages 26, the upper passage may be formed between the upper body portion 51 and the flow path body portion 72. The euro body portion 72 may face the upper plane F2 and the lower curved surface formed on the outer peripheral surface 51B of the upper body portion 51. The euro body portion 72 may face part of the lower curved surface and may face the third region R3 of the lower curved surface. The euro body portion 72 may be plate-shaped with a flat surface facing the upper plane F2 and the lower curved surface.

The outer cover 70 may form a receiving space between the euro body portion 72 and the side cover portion 73 to accommodate a portion of the lifting guide 110 and the lifting mechanism 120. The bottom of the receiving space of the outer cover 70 may be open.

The lower end of the side cover portion 73 may be in contact with the lifting guide 110 or the mounting portion 56. The lower end of the side cover portion 73 may be supported by being seated on the lifting guide 110 or the mounting portion 56.

The receiving space of the outer cover 70 may be formed between the euro body portion 72 and the side cover portion 73, and its upper surface may be closed by the upper cover portion 71 and its bottom may be formed in an open shape. there is.

<Deco Cover>

The deco cover 90 may include a lower plate 91 that covers the lower surface of the mounting portion 56, and a hollow cylinder portion 92 protruding from the outer periphery of the lower plate 91. The hollow cylinder portion 92 may be formed larger than the outer body portion 52. The hollow cylinder portion 92 may surround and protect the outer peripheral surface 52A of the outer body portion 52.

Figure 18 is a perspective view showing the outer cover, air guide, and lifting guide according to this embodiment, Figure 19 is a perspective view when the outer cover shown in Figure 18 is separated from the lifting guide, and Figure 20 is a drawing. Figure 21 is an enlarged perspective view of the air guide, lifting guide, and lifting mechanism shown in Figure 19, Figure 21 is a perspective view when the lifting guide shown in Figure 20 is separated, and Figure 22 is a ceiling-type air lift according to an embodiment of the present invention. This is a cross-sectional view when the air conditioner forms a horizontal airflow, and Figure 23 is a cross-sectional view when the ceiling-type air conditioner according to an embodiment of the present invention forms a vertical airflow.

<Suction panel>

As shown in FIGS. 22 and 23, the suction panel 3 may be disposed at the lower portion of the inner flow path body 60. A portion of the suction panel 3 may be disposed to face the lower hollow portion 68. The suction panel 3 may be disposed on the bottom of the inner euro body 60. A plurality of through holes 31 through which air is sucked into the lower hollow portion 68 may be formed in the suction panel 3. All or part of the plurality of apertures may be located below the lower hollow portion 68.

Here, the through hole 31 may be an air intake port through which indoor air is sucked into the ceiling-type air conditioner.

<Air Guide>

As shown in FIGS. 22 and 23, the air guide 100 is disposed to be raised and lowered on the main flow path body 50 and can vary the airflow of air discharged to the outlet 25.

When the air guide 100 is lowered, the air discharged through the outlet 25 may hit the air guide 100 and then be guided in the direction guided by the air guide 100. When the air guide 100 rises, the air discharged through the outlet 25 may pass through the lower end 103 of the air guide 100. The air guide 100 may be a flow guide that can change the air flow path while being raised and lowered.

The air guide 100 may have a curved shape, as shown in FIG. 21. The air guide 100 may be formed in a circular shape or an arc shape.

In a ceiling-type air conditioner, a single circular air guide can be arranged to be able to go up and down, and a plurality of arc-shaped air guides 100 can be arranged to be able to go up and down independently of each other.

<Single air guide and shape of air guide>

When a ceiling-type air conditioner includes one circular air guide, the ceiling-type air conditioner can form a horizontal airflow when one circular air guide is raised, and a vertical airflow when one circular air guide is lowered. can be formed. That is, when one circular air guide is raised and lowered, the ceiling-type air conditioner can form only one horizontal airflow or only one vertical airflow.

<Multiple air guides and shape of air guides>

A ceiling-type air conditioner may include a plurality of arc-shaped air guides, and the plurality of arc-shaped air guides may be raised and lowered independently of each other. In this case, some of the plurality of air guides may be raised to form a horizontal air flow, and the remaining air guides may be lowered to form a vertical air flow. That is, when a plurality of arc-shaped air guides 100 are raised and lowered independently of each other, the ceiling air conditioner can form a three-dimensional airflow that is a mixture of horizontal and vertical airflows, and these three-dimensional airflows can be composed of various combinations. there is.

<Exit location, bottom position of outer guide, and bottom position of air guide>

The outlet 25 may be between the outlet end 67 of the inner euro body 60 and the lower end 54C of the outer guide 54.

The distance (D5) from the central axis of the main euro body (50) to the lower end (54C) of the outer guide (54) is longer than the distance (D6) from the central axis of the inner euro body (60) to the outlet end (67). You can.

The distance (D7) from the central axis of the main euro body (50) to the lower end (103) of the air guide (100) may be longer than the distance (D5) from the central axis of the inner euro body (60) to the outlet end (67). there is.

<Main functions of Air Guide>

The air guide 100 can guide air exiting the outlet 25 while located outside the outlet 25, and may be an outer air guide, an outer wind direction control member, or an outer flow path guide. The air guide 100 is disposed on the discharge panel 2 to be able to descend around the outlet 25 and can guide the air discharged to the outlet 25.

<Inner guide side and outer side of air guide>

The air guide 100 preferably has an arc-shaped cross-section. The air guide 100 may include an inner guide surface 101 that faces the outlet 25 when it is lowered. The inner guide surface 101 may face the outlet 25 in a horizontal direction when the air guide 100 is lowered. The inner guide surface 101 may be a concave surface facing the outlet 25 in the horizontal direction.

The inner guide surface 101 may be a flow guide surface that directly guides the air passing through the outlet 25 when the air guide 100 is lowered. The inner guide surface 101 may be a vertical guide surface that converts the air passing through the outlet 25 into a downward air flow.

The inner guide surface 101 may be curved in the horizontal direction and may be flat in the vertical direction.

The air guide 100 may be curved in an arc shape, and an outer surface 102 may be formed on the opposite side of the inner guide surface 101. The outer surface 102 may be a convex surface located on the opposite side of the inner guide surface 101.

A plurality of air guides 100 may be arranged along the outlet 25. In this case, the virtual circle (O) connecting the plurality of air guides 100 may be larger than the inner guide 64. A plurality of air guides 100 may face different areas of the outlet 25.

The air guide 100 may be a wind direction control member that adjusts the wind direction of the air discharged through the outlet 25. The air guide 100 can adjust the wind direction of the air flowing along the outer guide 54 while being placed on the front panel 2 to be able to move up and down. The air guide 100 can change the airflow discharged to the outlet 25 depending on its height.

<Airflow according to the height of the air guide>

The air discharged through the outlet 25 flows along the bottom 103 of the air guide 100 depending on the height of the air guide 100 or hits the inner guide surface 101 of the air guide 100 and then flows in its direction. This can be converted.

When the air guide 100 is raised deep into the slit 57, the portion located below the slit 57 may be eliminated or minimized.

The air guide 100 may be provided with a rack 106. The rack 106 may be provided on the upper part of the air guide 100 to protrude upward.

The ceiling-type air conditioner may include a light emitting device (108, see FIG. 21) that irradiates light toward the air guide (100).

<Light-emitting device>

The light emitting device 108 may be installed to irradiate light toward one end of the air guide 100. The light emitting device 108 may include a PCB installed in the air guide 100 and a light emitting source such as an LED installed on a side of the PCB facing one end of the air guide 100.

<Elevation guide>

The lifting guide 110 may be placed on the main flow path body 50.

The lifting guide 110 may include a receiving groove (S3) in which the air guide 100 is raised and accommodated. The receiving groove (S3) may be formed in the lifting guide 110 in a shape with an open bottom. The overall shape of the lifting guide 110 may be the same as that of the air guide 100, and may be formed larger than the air guide 100.

In a ceiling-type air conditioner, a plurality of air guides 100 can be arranged to be raised and lowered together on one lifting guide, and each air guide 100 can be provided with a separate lifting guide 110.

When a plurality of air guides 100 are arranged to enable elevation in one elevator guide, the overall shape of one elevator guide may be circular.

On the other hand, when each lift guide 110 is provided for each of the plurality of air guides 100, the lift guide 110 may be formed in an arc shape like the air guide 100.

In this embodiment, the air guide 100 and the lift guide 110 may each have an arc shape, and in this case, a plurality of lift guides 110 may be arranged along a circular virtual line.

<Elevating mechanism>

The lifting mechanism 120 may be installed on at least one of the main euro body 50, the outer cover 70, and the lifting guide 110.

The lifting mechanism 120 may include a motor 122 and a pinion 124 connected to the rotation shaft of the motor 122 and meshed with the rack 106.

The lifting mechanism 120 can lower the air guide 100 around the exit 25 as shown in FIG. 23 in the lowering mode. The lifting mechanism 120 can lower the air guide 100 so that the lower end 103 of the air guide 100 is spaced apart from the outlet end 67 in the lowering mode.

The lifting mechanism 120 can raise the air guide 100 up next to the exit 25, as shown in FIG. 22 in the lifting mode.

In the lifting mode, the lifting mechanism 120 can raise the air guide 100 so that the lower end 103 of the air guide 100 coincides with the lower end 54C of the outer guide 54 in the horizontal direction. In this case, the air guided to the outer curved surface 55 of the outer guide 54 may be guided to the bottom of the decor cover 90 along the lower end 103 of the air guide 100.

A plurality of lifting mechanisms 120 may be provided, such as the air guide 100, and each of the air guides 100 may be independently lifted and lowered by different lifting mechanisms 120.

When there are two air guides 100, there may be at least two lifting mechanisms 120. The ceiling-type air conditioner is capable of lifting and lowering the arc-shaped air guide 100 by a plurality of lifting mechanisms 120. In this case, the plurality of lifting mechanisms 120 make the arc-shaped air guide 100 more stable. It can be elevated.

<Airflow control set>

In this embodiment, the outer cover 70, the air guide 100, the lifting guide 110, and at least one lifting mechanism 120 constitute an airflow control set (A) (B) (C) (D). can do. A plurality of these airflow control sets (A) (B) (C) (D) may be arranged along a circular imaginary line (O).

As shown in FIG. 18, the ceiling-type air conditioner may have four air guides 100 arranged along a circular virtual circle O. In this case, the lifting mechanism 120 includes four air guides 100. A first lifting mechanism connected to the first air guide, a second lifting mechanism connected to the second air guide among the four air guides (100), and a third lifting mechanism connected to the third air guide among the four air guides (100), It may include a fourth lifting mechanism connected to the fourth air guide among the four air guides 100.

Each of the first to fourth lifting mechanisms may include a motor 122, and the motors 122 of each of the first to fourth lifting mechanisms may be connected to a control unit (not shown) of the ceiling air conditioner. Can be controlled independently.

Hereinafter, the operation of this embodiment will be described as follows.

When the blower 4 is driven, indoor air may pass through the suction grill 3 and then pass through the upper hollow portion 20 of the discharge panel 2 and rise into the indoor unit 1.

<Air flow inside the indoor unit>

The air raised into the indoor unit 1 may flow into the heat exchanger 5 by the blower 4, and may exchange heat with the heat exchanger 5 while passing through the heat exchanger 5. The air heat-exchanged with the heat exchanger 5 may pass through a plurality of ventilation passages 7, 8, 9, and 10 and exit the indoor unit 1. In the indoor unit 1, a plurality of discharge air streams may be blown in a downward direction.

<Air flow in discharge panel>

The air passing through the plurality of blowing passages (7) (8) (9) (10) is distributed to the inlets (21) (22) (23) (24) of the discharge panel (2) and connected to the discharge panel (2). It can flow into the euro (26). The air flowing into the connection passage 26 of the discharge panel 2 can have its flow direction changed to a nearly horizontal passage while being guided by the outer guide 54 and the inner guide 64, and is guided through the outlet 25. It can be discharged in the peripheral direction of the outlet 25.

The ceiling-type air conditioner can vary the airflow of air discharged to the outlet 25 by raising and lowering the air guide 100 using the lifting mechanism 120.

<Airflow when air guide rises>

First, when the lifting mechanism 120 raises the air guide 100 as shown in FIG. 22, the air guide 100 reaches a height where its lower end 103 is in contact with the lower end 54C of the outer guide 54. can be raised to

In this case, the air guided to the outer curved surface 55 of the outer guide 54 may be guided to the deco cover 90 along the lower end 103 of the air guide 100.

To explain in more detail, some of the air passing through the connection passage 26 may flow attached to the outer curved surface 55 of the outer guide 54 due to the Coanda Effect.

The air flowing along the outer curved surface 55 of the outer guide 54 can pass over the lower end 103 of the air guide 100 while maintaining the Coanda effect along the lower end 103 of the air guide 100. , may flow to the bottom of the decor cover 90.

In this case, the air passing through the outlet 25 is guided along the bottom 103 of the air guide 100 and the bottom of the decor cover 90, and can be discharged as a nearly horizontal airflow, and is discharged to the outlet 25. The condensed air can be dispersed by spreading widely throughout the room.

<Airflow when lowering the air guide>

On the other hand, when the lifting mechanism 110 lowers the air guide 100 as shown in FIG. 23, a part of the air guide 100 including its lower end 103 may be lowered below the slit 57. At this time, the air guide 100 may be arranged to protrude downward between the outer guide 54 and the decor cover 90.

When the air guide 100 is lowered as described above, the inner guide surface 101 of the lower part of the air guide 100 may face the inner curved surface 65 of the inner guide 64 in the horizontal direction.

The flow direction of the air passing through the outlet 25 may be changed after a portion of it hits the inner guide surface 101 of the air guide 100.

The air hitting the inner guide surface 101 of the air guide 100 is blocked by the air guide 100 and cannot flow in the horizontal direction, but flows downward in the direction guided by the inner guide surface 101 of the air guide 100. The direction of flow may be bent.

In particular, the air flowing along the outer curved surface 55 of the outer guide 54 may change its flow direction to the downward direction after hitting the inner guide surface 101 of the air guide 100.

The air discharged through the outlet 25 may be guided by the air guide 100 and discharged as a nearly vertical airflow. In this case, the air discharged through the outlet 25 has an inner curved surface 65 around the lower end 67. It may be concentrated and discharged in a downward direction.

<Relationship between air guide height and airflow>

The ceiling-type air conditioner can form an airflow that is closer to horizontal as the height of the air guide (100) is higher, and the lower the height of the air guide (100) is, the more it can form an airflow that is closer to vertical.

Figure 24 is a longitudinal cross-sectional view showing a comparative example in which another discharge panel with a plurality of outlets spaced apart is installed instead of the discharge panel according to an embodiment of the present invention.

The discharge panel 2' shown in FIG. 24 is a comparative example installed instead of the discharge panel 2 of the present embodiment, and a plurality of outlets 25' may be formed to be spaced apart from each other, and the plurality of outlets 25' may be formed to be spaced apart from each other. '), a wind direction control vane 100' that controls the wind direction of the air discharged to the outlet 25' may be rotatably disposed.

The manufacturer can selectively combine another discharge panel 2' as shown in FIG. 24 and the discharge panel 2 of one embodiment of the present invention to the indoor unit 1.

In this case, the ceiling-type air conditioner including the discharge panel 2' shown in FIG. 24 and the ceiling-type air conditioner including the discharge panel 2 of an embodiment of the present invention have completely different airflow conversion methods and designs. It can be sold as a model.

<Effect of invention>

The manufacturer may share the indoor unit (1) and sell different models with different discharge panels (2) (2'), and design and manufacture the indoor units differently for each discharge panel (2) (2'). You can save more costs.

Manufacturers can sell the indoor unit by installing the discharge panel 2 of this embodiment on a pre-designed indoor unit 1 without having to redesign the indoor unit to suit the discharge panel 2 of this embodiment, and can reduce the overall manufacturing cost. there is.

When purchasing a ceiling air conditioner, users can select models with completely different airflow conversion methods and designs depending on their preference. And, of course, while using the ceiling air conditioner, the user can purchase another discharge panel 2 from the manufacturer and install it on the indoor unit 1 instead of the previously used discharge panel 2'.

<Example of variation of discharge panel>

As another example of the present invention, the flow path 72 may be formed integrally with the main flow path 50 to form the discharge path 18 by the main flow path 50 and the inner flow path 60. do.

A plurality of inlets 21, 22, 23, and 24 may be formed between the upper body portion 51 of the main euro body 50 and the euro body portion 72 of the main euro body 50. .

In this case, the upper cover part 71 and the side cover part 73 of the outer cover 70 may be located next to the euro body part 72, and the euro body part 72 of the main euro body 50 And, the lifting mechanism 120 can be accommodated between the side cover portions 73.

<Other variations of discharge panel>

The present invention is not limited to the above embodiment, and an example in which the entire outer cover 70 is formed integrally with the main euro body 50 is also possible.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art 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 rather to explain it, 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 in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

1: Indoor unit 2: Discharge panel
3: Suction grill 4: Blower
5: Heat exchanger 7,8,9,10: Blowing passage
21,22,23,24: Entrance 25: Exit
26: Connection passage

Claims (22)

an indoor unit having a heat exchanger and a blower built into it, including a drain unit disposed below the heat exchanger, and having a plurality of polygonal blowing passages that guide the discharge of air that has passed through the heat exchanger;
A discharge panel coupled to the indoor unit and guiding the discharge of air passing through the plurality of blowing passages;
In the discharge panel,
a plurality of polygonal inlets corresponding to the plurality of blowing passages;
an outlet having an arc shape or a circular shape;
A ceiling-type air conditioner having a connecting passage connecting the plurality of polygonal inlets and outlets. According to claim 1,
A ceiling-type air conditioner in which the horizontal width of the connection passage repeatedly increases and decreases along the outlet. According to claim 1,
The connection flow path is
A first area formed below the polygonal entrance,
It includes a second area formed below the periphery of the polygonal entrance,
The first area and the second area are alternately located along the outlet,
A ceiling-type air conditioner wherein the horizontal width of the first area is greater than the horizontal width of the second area. According to claim 3,
A ceiling-type air conditioner wherein the horizontal width of the first area gradually decreases as it gets closer to the second area. According to claim 1,
The discharge panel is formed with a hollow portion open in the vertical direction,
The plurality of polygonal entrances are
a front entrance and a rear entrance spaced apart in the anteroposterior direction with the hollow part in between;
A ceiling-type air conditioner including a left inlet and a right inlet spaced apart in the left and right directions with the hollow part in between. According to claim 1,
The discharge panel is formed with a hollow portion open in the vertical direction,
A ceiling-type air conditioner wherein the hollow portion is alternately formed with flat and curved surfaces along the inner circumference of the discharge panel. According to claim 1,
The top of the connection passage is
a first curvature area located below the polygonal inlet and having a first curvature;
a second curvature region located below the perimeter of the polygonal inlet and having a second curvature greater than the first curvature;
The outlet has a circular shape with a third curvature greater than the first curvature,
A ceiling-type air conditioner in which the connection passage has a cross-sectional shape that gradually approaches a circular shape as it moves downward. According to claim 7,
A ceiling-type air conditioner in which the curvature of the passage located below the first curvature area among the connection passages gradually increases in the downward direction. According to claim 1,
The outer perimeter of the indoor unit is a polygon,
The outlet is circular,
A ceiling-type air conditioner where the outer circumference of the discharge panel is circular. According to claim 1,
The discharge panel is
a main euro body in which an upper body part is connected to an outer body part larger than the upper body part through a connection part;
an inner euro body disposed below the upper body portion;
A ceiling-type air conditioner including at least one outer cover disposed on an upper portion of the outer body portion. According to claim 10,
The polygonal inlet is formed between the upper body portion, the connection portion, and the outer cover,
The outlet and connection passage are ceiling-type air conditioners formed between the inner flow path and the outer body. According to claim 10,
The upper body portion is a ceiling-type air conditioner formed in a square shape with four corners rounded. According to claim 10,
The outer circumferential surface of the upper body portion is
Upper plane;
Comprising a lower curved surface lower than the upper plane,
The outer cover is a ceiling-type air conditioner having one surface facing the upper plane and the lower curved surface in a horizontal direction. According to claim 10,
The connection part is
an upper connection part protruding from the upper body part;
A ceiling-type air conditioner including a side connection part extending downward from the upper connection part and connected to the outer body part. According to claim 14,
The upper connection part is a ceiling-type air conditioner having a side end perpendicular to the upper plane of the upper body part. According to claim 10,
The outer body part
It includes an outer guide facing the outer circumferential surface of the inner euro body,
The outer guide is
a first guide having a convex outer curved surface facing the inner euro body;
A ceiling-type air conditioner including a second guide connected to the connection part. According to claim 16,
The outer cover is a ceiling-type air conditioner mounted on the first guide. According to claim 10,
The outer circumferential surface of the inner euro body includes an inlet opposing surface facing the polygonal inlet in a vertical direction, and a connecting portion opposing surface facing the connecting portion in a vertical direction,
The inlet opposing surface and the connecting portion opposing surface are alternately formed along the outer circumferential surface of the inner flow path body,
A ceiling-type air conditioner wherein the inlet opposing surface is gentler than the connecting portion opposing surface. According to claim 10,
Further comprising an air guide disposed to be raised and lowered on the outer body portion to vary the airflow of air discharged through the outlet,
A ceiling-type air conditioner in which a slit through which the air guide passes is open in the vertical direction in the outer body portion. According to claim 19,
The air guide has an arc-shaped cross-section,
The air guide includes an inner guide surface facing the outlet when the air guide is lowered,
A ceiling-type air conditioner wherein a plurality of the air guides are arranged along the outlet. According to claim 19,
a lifting guide disposed on the main flow path body to guide the air guide up and down;
A ceiling-type air conditioner further comprising a lifting mechanism installed on at least one of the lifting guide, the main euro body, and the outer cover to raise and lower the air guide. According to claim 21,
The outer cover is
An upper cover portion covering the upper surface of the lifting guide and the lifting mechanism,
a euro body portion extending downward from the upper cover portion and forming the polygonal inlet together with the upper body portion and the connection portion;
A ceiling-type air conditioner including a side cover portion extending downward from the upper cover portion and covering an outer circumferential surface of the lifting guide.

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