KR20180103534A - Ceiling type air conditioner - Google Patents

Abstract

According to one embodiment of the present invention, provided is a ceiling type air conditioner, which can comprise: an indoor unit having a heat exchanger and a blower therein and forming a plurality of blast passages for guiding air passing through the heat exchanger to be discharged; and a discharge panel disposed on the lower side of the indoor unit, having a plurality of inflow holes corresponding to the plurality of blast passages, and blowing the air introduced to the inflow hole to an outflow hole by guiding the same to a portion between an inner guide surface and an outer guide surface. The inner guide surface includes an exposure region exposed to the outside in the horizontal direction. Moreover, the exposure region can include a first exposure region corresponding to each of the plurality of inflow holes and a second exposure region corresponding to a portion between a pair of adjacent inflow holes among the plurality of inflow holes. In addition, a maximum curvature of the second exposure region can be larger than that of the first exposure region.

Description

{Ceiling Type Air Conditioner}

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

The air conditioner is a device that creates a more comfortable indoor environment for the user.

The air conditioner can cool or heat the room using a refrigeration cycle apparatus having a compressor, a condenser, an expansion mechanism, and an evaporator in which refrigerant is circulated.

The air conditioner may be classified into a stand type air conditioner, a wall-mounted type air conditioner, a ceiling type air conditioner, and the like depending on the installation position.

The ceiling type air conditioner is installed on the ceiling and can discharge cold or warm air into the room.

The ceiling-mounted air conditioner may have an air outlet through which air is discharged, and the air outlet may be provided with a wind direction adjusting member for adjusting the direction of the air discharged toward the room. The wind direction adjusting member may be rotatably disposed on the air outlet.

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

A problem to be solved by the present invention is to provide a ceiling-type air conditioner in which dew condensation phenomenon can be improved.

Another problem to be solved by the present invention is to provide a ceiling-type air conditioner which can prevent a phenomenon of a wind blowing back from an air stream taken out from a part of an outlet.

The ceiling type air conditioner according to an embodiment of the present invention includes an indoor unit having a heat exchanger and a blower, and having a plurality of air passages for discharging air that has passed through the heat exchanger; And a discharge panel disposed below the indoor unit and having a plurality of inlets corresponding to the plurality of ventilation passages and guiding the air introduced into the inlet through the inner guide surface and the outer guide surface to take out the air into the outlet . Wherein the inner guide surface includes an exposed area exposed to the outside in a horizontal direction, the exposed area includes: a first exposed area corresponding to each of the plurality of inlets; And a second exposure area corresponding to a gap between the pair of adjacent ones of the plurality of inlets. The maximum curvature of the second exposed region may be greater than the maximum curvature of the first exposed region.

The inclination of the upper end of the second exposed region may be formed to be closer to the vertical than the inclination of the upper end of the first exposed region.

The inclination of the lower end of the second exposed region may be formed to be closer to the horizontal than the inclination of the lower end of the first exposed region.

The slope of the lower end of the second exposed region may be horizontal.

The slope of the upper end of the second exposed area may be vertical.

Wherein the second exposed region includes a first region including an upper end of the second exposed region and having a constant slope; A second region spaced apart from the first region and including a lower end of the second exposed region, the second region having a constant slope less than the slope of the first region; And a third region located between the first region and the second region and having a gradient from the first region toward the second region.

The first region may be formed vertically and the second region may be formed horizontally.

The second exposed region including a top of the second exposed region, the first region having a curvature less than the curvature of the first exposed region; A second region spaced apart from the first region and including a lower end of the second exposed region, the second region having a curvature less than a curvature of the first exposed region; And a third region located between the first region and the second region and having a curvature larger than a curvature of the first exposed region.

Wherein the discharge panel includes an upper body portion, an outer body portion that is larger than the upper body portion and has the outer guide surface, and a connection portion that connects the upper body portion and the outer body portion; And an inner flow body disposed at a lower portion of the upper body portion and having the inner guide surface.

The connecting portion may be located between a pair of inlets adjacent to each other of the plurality of inlets, and the second exposed region may correspond to the connecting portion.

At least a part of the first exposed region overlaps with the inlet in a vertical direction, and at least a part of the second exposed region overlaps with the connection portion in a vertical direction.

The outlet includes a first outlet formed between a lower end of the outer guide surface and a lower end of the first exposed area; And a second outlet formed between a lower end of the outer guide surface and a lower end of the second exposed region. The first outlet and the second outlet may be alternately disposed along the circumferential direction of the discharge panel.

The area of the first outlet may be larger than the area of the second outlet.

The ceiling type air conditioner according to an embodiment of the present invention may further include at least one air guide that is vertically movable on the discharge panel and varies an air flow of the air discharged to the outlet. When the air guide is lowered, one side of the air guide can be viewed from the first outlet with respect to the horizontal direction.

The ceiling type air conditioner according to an embodiment of the present invention may further include a plurality of air guides that are vertically movable on the discharge panel and vary the air flow of the air discharged to the outlet. When the air guide descends, a gap between a pair of air guides adjacent to each other among the plurality of air guides can be viewed toward the second outlet with respect to the horizontal direction.

According to the preferred embodiment of the present invention, it is possible to prevent the phenomenon of the siphoning phenomenon in which the blowing air stream is re-sucked in the portion where the flow rate of the airflow in the outlet is slow.

In addition, the design of the flow path, without additional structure or parts, can prevent the blowing phenomenon of the blowout air stream.

In addition, it is possible to prevent dew from being formed on the bottom surface of the suction panel due to the phenomenon of the occurrence of the wind.

1 is a perspective view of a ceiling-mounted air conditioner according to an embodiment of the present invention.
2 is a bottom view of a ceiling-mounted air conditioner according to an embodiment of the present invention.
3 is a longitudinal sectional view of a ceiling-mounted air conditioner according to an embodiment of the present invention.
Fig. 4 is a bottom view of the indoor unit shown in Figs. 1 and 3. Fig.
Figure 5 is a perspective view of the lower body assembly shown in Figures 1-3.
FIG. 6 is a perspective view of the lower body assembly shown in FIG. 5 when the discharge panel and the suction panel are separated.
7 is a perspective view illustrating a discharge path of a discharge panel according to an embodiment of the present invention.
8 is a plan view showing a suction path and a discharge path of a discharge panel according to an embodiment of the present invention.
9 is a sectional view taken along the line X-X 'in FIG.
10 is a sectional view taken along the line Y-Y 'in FIG.
11 is an enlarged bottom view of a part of an outlet of a ceiling-type air conditioner according to an embodiment of the present invention.
Fig. 12 is a view of the first outlet shown in Fig. 9 in a horizontal direction.
Fig. 13 is a view of the second outlet shown in Fig. 10 in a horizontal direction.
14 is an exploded perspective view of a discharge panel according to an embodiment of the present invention.
15 is a perspective view illustrating a main flow body according to an embodiment of the present invention.
16 is a perspective view showing a part of a main flow body according to an embodiment of the present invention.
17 is a plan view of a main flow body according to an embodiment of the present invention.
18 is a bottom view of a main flow body according to an embodiment of the present invention.
19 is a perspective view of an inner flow body according to an embodiment of the present invention.
20 is a plan view of an inner flow body according to an embodiment of the present invention.
21 is a perspective view illustrating an outer cover, an air guide, and an elevation guide together according to an embodiment of the present invention.
22 is a perspective view of the outer cover shown in Fig. 21 when the outer cover is separated from the elevation guide.
23 is an enlarged perspective view of the air guide, the elevation guide, and the elevation mechanism shown in Fig.
Fig. 24 is a perspective view of the air guide shown in Fig. 23 when the elevation guide is separated from the air guide. Fig.
FIG. 25 is a cross-sectional view illustrating the airflow taken out to the first outlet when the air guide rises in the ceiling-type air conditioner according to the embodiment of the present invention. FIG.
FIG. 26 is a cross-sectional view illustrating the airflow taken out to the first outlet when the air guide is lowered in the ceiling-type air conditioner according to the embodiment of the present invention.
FIG. 27 is a cross-sectional view illustrating an airflow taken out from a ceiling-type air conditioner to a second outlet according to an embodiment of the present invention.

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

FIG. 1 is a perspective view of a ceiling-mounted air conditioner according to an embodiment of the present invention, FIG. 2 is a bottom view of a ceiling-mounted air conditioner according to an embodiment of the present invention, FIG. 4 is a bottom view of the indoor unit shown in FIGS. 1 and 3. FIG.

<Indoor unit>

The indoor unit (1) may include a blower (4) and a heat exchanger (5). The indoor unit 1 can blow air to the discharge panel 2 after sucking the air and exchanging heat with the refrigerant. The indoor unit 1 can constitute the main body of the ceiling-type air conditioner.

The indoor unit 1 has a region 15 in which air is sucked into the indoor unit 1 and a region 7, 8, 9 and 10 in which air in the indoor unit 1 is blown to the discharge panel 2 And an indoor unit flow body 13 for partitioning the indoor unit.

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

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

The indoor unit 1 may be provided with an inner suction hole 6 through which the air sucked through the suction panel 3 is sucked into the indoor unit 1. The indoor unit 1 may be provided with a plurality of air passages 7, 8, 9, and 10 for discharging and guiding the air that has passed through the heat exchanger 5.

The indoor unit 1 can discharge the air in the downward direction through the plurality of air passages 7, 8, 9, and 10. The indoor unit 1 can form a plurality of discharge air streams blown from the inside of the indoor unit 1 in the downward direction. Such a plurality of discharge airflows can be blown in a side-by-side direction.

The outer periphery of the indoor unit 1 may have a polygonal shape. The plurality of air passages 7, 8, 9, and 10 may be formed to be open in the vertical direction on the bottom surface of the indoor unit 1. The indoor unit 1 can discharge a plurality of vertical air currents blown downward through the bottom surface thereof.

The indoor unit 1 can be installed on the ceiling. The indoor unit 1 can be supported by a fastening member such as an anchor bolt fixed to the ceiling. The indoor unit (1) may be provided with a fastening portion (12) for fastening the fastening member.

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

<Chassis of indoor unit>

The chassis 11 can be mounted on the ceiling with fastening members such as anchor bolts. The chassis 11 may be provided with a fastening portion 12 to which a fastening member such as an anchor bolt is 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 having a bottom open and a space therein.

The chassis 11 may have a space in which the blower 4 and the heat exchanger 5 are accommodated. The chassis 11 may have a shape in which front, rear, left, right sides and upper surfaces are clogged. The bottom surface of the chassis 11 can be opened.

<Blower of indoor unit>

The blower 4 may be disposed inside the chassis 11. The blower 4 can be mounted on the top plate of the chassis 11. [

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

The blower 4 may be mounted above the upper hollow portion 20 of the discharge panel 2, which will be described later.

The blower 4 may be composed of a centrifugal blower that sucks the air on the lower side thereof and blows the air in the 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 for guiding air sucked into the centrifugal fan 42.

The rotation shaft connected to the centrifugal fan 42 may be mounted on the motor 41 so as to protrude downward.

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

The orifice (43) can be installed inside the chassis (11). The orifice 43 may be provided in the indoor unit flow body 13 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 by the centrifugal fan 42 in the centrifugal direction of the centrifugal fan 42 .

The air blown in the centrifugal fan 42 in the centrifugal direction can flow into the heat exchanger 5 disposed around the outer periphery of the centrifugal fan 42 and can be heat-exchanged with the heat exchanger 5.

<Heat exchanger of indoor unit>

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

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

The heat exchanger (5) may be installed so as to be spaced apart from the inner surface of the chassis (11). Between the heat exchanger 5 and the inner surface of the chassis 11, a passage may be formed in which air is guided to the blowing passages 7, 8, 9, and 10 to be described later.

The heat exchanger 5 may be bent so that a space S1 in which the blower 4 is accommodated is formed therein. The heat exchanger (5) may include four heat exchangers facing different surfaces of the chassis (11). The heat exchanger 5 can surround the outer circumferential surface of the blower 4 from the outside of the blower 4. [

<Drain unit of indoor unit>

The drain unit 14 may be formed so that its top surface is opened, and a space in which the lower portion of the heat exchanger 5 can be accommodated may be formed therein.

<Indoor unit air conditioner body of indoor unit>

The indoor unit flow body 13 may be coupled to the drain unit 14. The indoor unit flow body 13 may have a hollow portion 15 through which air can pass in the vertical direction. The hollow portion 15 may be an indoor air intake port for sucking the air in the lower portion of the indoor unit 1 into the indoor unit 1. [ The hollow portion 15 may be a region where air is sucked into the indoor unit 1.

&Lt; a plurality of ventilation passages of the indoor unit &

The indoor unit flow body 13 may be disposed at an inner lower portion of the chassis 11. The indoor unit flow body 13 can form an appearance of the bottom surface of the indoor unit 1.

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 ventilation passages 7, 8, 9, and 10 may be a region where the air inside the indoor unit 1 is blown to the discharge panel 2.

The plurality of air passages 7, 8, 9, and 10 may be spaced apart from the inner suction holes 6.

As shown in Fig. 4, the plurality of ventilation passages 7, 8, 9, and 10 include left ventilation passages 7, right ventilation passages 8, front ventilation passages 9, And a rear-side airflow passage (10).

As shown in Fig. 4, the plurality of air passages 7, 8, 9, and 10 can be formed along the rectangular imaginary line 17A, and a plurality of air passages 7, 8, 9 ) 10 may be formed on each side of the rectangular hypothetical line 17A.

The left air blowing passage 7 can be positioned close to the left side face 1A of the left side face 1A and the right side face 1B of the indoor unit 1 and can be formed long in the front and rear direction.

The right air blowing passage 8 can be positioned close to the right side face 1B of the left side face 1A and the right side face 1B of the indoor unit 1 and can be formed long in the front and rear direction.

The front air passage 9 may be positioned close to the front surface 1C of the front and rear surfaces 1C and 1D of the indoor unit 1 and may be formed long in the left and right direction.

The rear air passage 10 may be located close to the front surface 1C of the indoor unit 1 and the rear surface 1D of the rear surface 1D and may be formed long in the lateral direction.

&Lt; Positioning of a plurality of blowing passages &

A plurality of air passages 7, 8, 9 and 10 can be formed in the indoor unit flow path body 13 and a plurality of air flow paths 7, 8, 9 and 10 can be formed in the indoor unit flow path body 13, respectively.

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

The plurality of ventilation passages 7, 8, 9 and 10 may be four opening areas in which the positions are different and the opening directions are parallel to each other. (9) and (10).

The indoor unit 1 may be a 4-way discharge type indoor unit which forms four vertical air flows whose discharge directions are parallel to each other.

<Discharge panel coupled to indoor unit>

The outer periphery 2A of the discharge panel 2 may be circular. In the discharge panel 2, the bottom surface 2B may be flat.

The discharge panel 2 can be coupled to the indoor unit 1 and can guide the air that has passed through the plurality of air passages 7, 8, 9, and 10 to the outside. The discharge panel 2 may be disposed under the indoor unit 1 together with the suction panel 3. [ The discharge panel 2 can constitute a lower body assembly disposed under the indoor unit 1 together with the suction panel 3. [

The discharge panel 2 can be coupled to the lower portion of the indoor unit 1 and can guide the air blown downward through the plurality of ventilation passages 7, 8, 9 and 10 to the room .

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

The discharge panel 2 switches the air flow of the air blown in the vertical direction, particularly the downward direction, in the indoor unit 1 to the horizontal direction H1 as shown in Fig. 3, To the lower inclination direction H2 having the inclination angle [theta] of the inclination angle [theta].

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

The discharge panel 2 is provided with at least one inlet 21, 22, 23, 24 (see FIG. 5) communicating with the plurality of air passages 7, 8, 9, 10 of the indoor unit 1 . Further, the discharge panel 2 may be provided with an outlet 25 having a round or arc shape.

The discharge panel 2 may be provided with a connecting flow passage 26 and the connecting flow passage 26 may guide the air introduced into the inlets 21, 22, 23 and 24 to the outlet 25 . This will be described in detail later.

&Lt; Air guide arranged on the discharge panel >

The ceiling-mounted air conditioner may include an air guide 100 which is arranged to be raised and lowered on the discharge panel 2 and guides air passing through the outlet 25. The ceiling-mounted air conditioner includes an elevating guide 110 for guiding the air guide 100 up and down; And an elevating mechanism 120 for elevating and lowering the air guide 100.

The air guide 100 may be disposed on the discharge panel 2 so as to be lifted or lowered. The air guide 100 is arranged to face the outlet 25 with respect to the horizontal direction at the time of descent, and can guide the air that has passed through the outlet 25.

A slit 57 can be formed in the discharge panel 2 so that the air guide 100 can be lowered around the outlet 25 of the discharge panel 2 or can be raised inside the discharge panel 2.

The slit 57 can be formed on the bottom surface of the discharge panel 2 and can be opened up and down.

FIG. 5 is a perspective view of the lower body assembly shown in FIGS. 1 to 3, FIG. 6 is a perspective view when the discharge panel and the suction panel are separated from each other in the lower body assembly shown in FIG. 5, FIG. 8 is a plan view showing a suction path and a discharge path of a discharge panel according to an embodiment of the present invention, and FIG. 9 is a cross-sectional view taken along line X-X 'of FIG. 10 is a cross-sectional view taken along line Y-Y 'of Fig. 6. Fig.

<Discharge panel>

The discharge panel 2 may be provided with a suction passage 16 for sucking and guiding the air having passed through the suction panel 3 to the inside of the indoor unit 1. The discharge panel 2 may be provided with a discharge passage 18 for discharging and guiding the air discharged from a plurality of the air blowing passages 7, 8, 9, and 10 to the room.

&Lt; Suction flow path of discharge panel &

The discharge panel 2 may be provided with a suction passage 16 for guiding the air that has passed through the suction panel 3 to the hollow portion 15 (see FIG. 3) of the indoor unit 1. The discharge panel 2 may be provided with a hollow portion through which the air having passed through the suction panel 3 passes to be sucked into the indoor unit 1. The hollow portion of the discharge panel 2 may be formed to pass through 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 flow path of the discharge panel 2 and the hollow portion of the discharge panel 2 will be described using the same reference numeral "16".

The suction passage 16 may be located inside the discharge passage 18 and may be formed separately from the discharge passage 18 as shown in FIG.

The suction passage 16 may have a circular or rectangular cross-sectional shape in the horizontal direction. The quadrangular shape of the suction passage 16 may include a quadrangular shape close to a circle. Here, a quadrangle close to a circle may mean a quadrangle having two pairs of opposite sides and having four vertices rounded.

The suction passage H having a circular sectional shape is smaller in size than the suction passage 16 having a rectangular sectional shape and the suction passage 16 having a rectangular sectional shape has a larger suction area inside the discharge panel 2 So that the air can be sucked in quickly.

5, the ceiling type air conditioner can accommodate an electric component 17 such as a sensor, a motor, or a user's body in the suction flow path 16. In this case, the electric component 17 has a rectangular cross- Or may be arranged so as not to disturb the flow of air to the suction passage 16, which is a shape close to a quadrangle, as much as possible.

On the other hand, when the shape of the electric component 17 is a quadrangle, the rectangular electric component 17 may not easily be mounted on the suction flow passage H having a circular sectional shape. The quadrilateral electrical component 17 may block an area of the circular suction flow passage H, and the air suction amount through the circular suction flow passage H may be reduced.

That is, it is preferable that the suction passage 16 of the discharge panel 2 is formed in a shape having a quadrangular cross section or a quadrilateral shape at the maximum.

&Lt; Discharge channel of discharge panel >

At least one inlet may be formed in the discharge panel 2. The discharge panel 2 may be provided with a plurality of inlets 21, 22, 23, 24 corresponding to the plurality of blowing passages 7, 8, 9, The discharge panel 2 may be formed with an arc-shaped or circular-shaped outlet 25. The discharge panel 2 may be provided with a connecting flow passage 26 for connecting the plurality of inlets 21, 22, 23, 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 connecting passage 26 and an outlet 25.

The air discharged from the air blowing passages 7, 8, 9 and 10 of the indoor unit 1 can be introduced into the connecting flow passage 26 through the plurality of inlets 21, 22, 23 and 24 And 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 ejection panel>

The inlets 21, 22, 23 and 24 formed in the discharge panel 2 can correspond one to one with the ventilation 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 provided with a left inlet 21 communicating with the left ventilation passage 7 in the vertical direction and a left inlet 21 communicating with the right ventilation passage 8 in the vertical direction A front side inlet 23 communicating with the front side airflow passage 9 in the vertical direction and a rear side inlet 24 communicating with the rear side airflow passage 10 in the vertical direction, .

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

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

<Size and shape of inlet>

Sectional size of each of the plurality of inlets 21, 22, 23 and 24 may be equal to the cross-sectional size of each of the plurality of ventilation passages 7, 8, 9,

Sectional shapes of the inlet ports 21, 22, 23 and 24 may be the same as those of the blowing passages 7, 8, 9,

The sectional shapes of the openings 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 vertex portion is rounded to have a predetermined curvature.

The sectional shapes of the inlets 21, 22, 23 and 24 may be rectangular, in particular rectangular, as in the sectional shape of the air passage 7, 8, 9, Here, the rectangular shape of the openings 21, 22, 23 and 24 may be a long rectangular shape in the horizontal direction, and at least one side or at least one vertex may include a rounded shape.

A plurality of inlets 21, 22, 23 and 24 are arranged in a rectangular virtual line 19, as shown in FIGS. 7 and 8, like the air passages 7, 8, 9 and 10 of the indoor unit 1 22, 23 and 24 may be formed on each side of the quadrangular imaginary line 19, as shown in FIG.

The rectangular imaginary line 19 of the discharge panel 2 shown in Figs. 7 and 8 and the rectangular imaginary line 17A of the indoor unit 1 shown in Fig. 4 are the same in size and can be aligned in the vertical direction .

&Lt; Exit of discharge panel &

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

The outlet 25 may be fewer than the inlets 21, 22, 23 and 24. The outlet 25 may be larger than each of the plurality of inlets 21, 22, 23 and 24.

<Shape and number of outlet>

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 imaginary line. In the case where the outlet 25 is arc-shaped, the arc-like shape may have the same shape as a 'C' shape, or a shape including a heat or semicircular 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, the circle may have an elliptical shape, and its sectional shape may be formed in a closed loop shape.

The outlet 25 may be a main opening through which the air having passed through the connecting passage 26 is discharged to the outside of the discharge panel 2. [

The discharge panel 2 can be exposed to the room while being coupled to the lower portion of the indoor unit 1 and the outlet 25 can be exposed to the room together with the bottom surface of the discharge panel 2.

&Lt; Detailed configuration of outlet &

Referring to Figs. 7 and 8, the outlet 25 may include a first outlet 25A and a second outlet 25B.

The first outlet 25A may be an area corresponding to the inlet 21, 22, 23, 24 of the outlet 25. More specifically, the first outlet 25A may refer to an area of the outlet 25 located below the inlets 21, 22, 23 and 24.

The second outlet 25B may be a region of the outlet 25 corresponding to a pair of adjacent inlet portions. More specifically, the second outlet 25B may refer to an area of the outlet 25 located between a pair of adjacent ones of the inlets. The second outlet 25B may not correspond to the openings 21, 22, 23 and 24 and may be located below the connecting portion 53 to be described later.

That is, the first outlet 25A may correspond to the inlet 21, 22, 23, 24 along the direction of the connecting passage 26, and the second outlet 25B may correspond to the connecting passage 26 And may correspond to the connection portion 53 along the direction.

The first outlet 25A and the second outlet 25B can communicate with each other.

The first outlet 25A and the second outlet 25B may be alternately disposed along the circumferential direction of the discharge panel 2. [

At the first outlet 25A, the air introduced from the inlet 21, 22, 23, 24 corresponding thereto can be immediately taken out. On the other hand, at the second outlet 25B, the air introduced into each pair of adjacent inlets can be mixed and taken out.

With the above arrangement, the take-off air flow passing through the first outlet 25A can be faster than the take-off air flow passing through the second outlet 25B, and the flow rate can be large. The first outlet 25A may be a main outlet and the second outlet may be a sub outlet.

The first outlet 25A and the second outlet 25B may be alternately disposed along the circumferential direction of the discharge panel 2. [ The second outlet 25B may be located between a pair of first outlets 25A adjacent to each other and the first outlet 25A may be located between a pair of second outlets 25B adjacent to each other.

The number of each of the first outlet 25A and the second outlet 25B may be the same as the number of the inlets 21, 22, 23,

Each of the first outlet 25A and the second outlet 25B may have an arc shape. When the outlet 25 is a circular shape, each of the first outlet 25A and the second outlet 25B may be an arc shape constituting a part of a circular shape.

The circumferential length of the first outlet 25A may be longer than the circumferential length of the second outlet 25B. That is, the area of the first outlet 25A may be larger than the area of the second outlet 25B. As a result, the flow velocity of the air taken out from the entire outlet 25 can be increased and the flow rate can be increased, so that the air conditioning efficiency of the ceiling-mounted air conditioner can be improved.

&Lt; Connection channel of discharge panel >

The connecting flow passage 26 can guide the air introduced into the inlets 21, 22, 23 and 24 to the outlet 25.

The connection passage 26 may be an air flow switching discharge passage for switching the air flow of the air sucked into the plurality of inlets 21, 22, 23, 24 and guiding the air flow to the outlet 25. The connecting flow passage 26 may be an air flow mixed discharge passage for mixing the air sucked into the plurality of polygonal openings 21, 22, 23 and 24 and guiding the mixed air to the outlet 25.

9, the upper flow path of the connection flow path 26 may be formed between the outer circumferential surface 51B of the upper body portion 51 and the inner circumferential surface 70A of the outer cover 70 have.

The lower flow path of the connecting flow path 26 may be formed between the outer circumferential surface 65 of the inner flow path body 60 and the inner circumferential surface of the outer body portion 52. At this time, the outer circumferential surface of the inner passage body 60 may be the inner guide surface 65 of the inner guide 64. The inner circumferential surface of the outer body 52 may be an outer guide surface 55 of the outer guide 54.

<Shape of connection channel>

The connecting passage 26 may have a closed cross-sectional shape in the horizontal direction.

The connecting passage 26 may be formed in such a shape that the cross-sectional area gradually increases toward the lower side.

The connecting passage 26 may be formed to switch the vertical airflow to the horizontal airflow, and the vertical sectional shape thereof may be curved. The connecting passage 26 may have a shape in which the cross-sectional shape in the vertical direction extends in the outward direction toward the lower side.

7 and 8, the rectangular imaginary line 19 in which the plurality of inlets 21, 22, 23 and 24 are located is formed not only higher than the outlet 25 but also smaller than the outlet 25 . In this case the first distance D1 between the sides of the quadrilateral imaginary line 19 and the outlet 25 may be different from the second distance D2 between the vertex of the quadrilateral imaginary line 19 and the outlet 25 have.

The first distance D1 may be longer than the second distance D2 and the distance between the quadrilateral imaginary line 19 and the circular outlet 25 may repeat the increase and decrease along the circumferential direction. The first distance D1 can be gradually reduced as it approaches the vertex of the rectangular virtual line 19. [

The connecting flow paths 26 may be formed such that their horizontal widths D3 and D4 in the circumferential direction are not the same in consideration of the distance difference D1-D2.

The horizontal widths D3 and D4 of the connecting flow passage 26 can be alternately increased and decreased along the outlet 25 and repeatedly increased and decreased.

<Detailed configuration of connection channel>

The connection passage 26 may include a first connection passage 26A and a second connection passage 26B.

Depending on the positional relationship with the inlets 21, 22, 23 and 24, the first connection passage 26A can be formed under the inlets 21, 22, 23 and 24, The connection passage 26B may be formed below the peripheries of the inlets 21, 22, 23,

And the second connection passage 26B may be positioned below a pair of openings adjacent to each other.

The first connection passage 26A and the second connection passage 26B can communicate with each other.

And the second connection passage 26B may be positioned beside the first connection passage 26A in the horizontal direction.

The first connection passage 26A and the second connection passage 26B may be alternately disposed along the outlet 25 in the circumferential direction of the discharge panel 2. [

Referring to FIG. 9, the first outlet 25A may be located at the lower end of the first connection passage 26A. Referring to FIG. 10, the second outlet 25B may be positioned at the lower end of the second connection passage 26B.

The first connection passage 26A may be located between the inlets 21, 22, 23, 24 and the first outlet 25A. The second connection passage 26B may be located between a pair of adjacent inlet portions and a second outlet 25B. More specifically, the second connection passage 26B may be located between the connection portion 53 and the second outlet 25B.

7 and 8, the horizontal width D3 of the first connection passage 26A may be larger than the horizontal width D4 of the second connection passage 26B. Here, the horizontal widths D3 and D4 are compared at the same height.

The horizontal width D3 of the first connection passage 26A can be gradually reduced as it gets closer to the second connection passage 26B.

7, the horizontal width D3 of the first connection passage 26A is increased and decreased in the clockwise direction along the outlet 25, and the horizontal width D4 of the second connection passage 26B is increased, May be decreased clockwise along the outlet 25 and then increased. In this case, the average horizontal width D3 of the first connection flow channel 26A may be larger than the average horizontal width D4 of the second connection channel 26B.

The upper end 26C of the connecting flow passage 26 is closer to the plurality of inlets 21, 22, 23 and 24 and the plurality of inlets 21, 22, 23 and 24 of the outlet 25 Lt; / RTI &gt; The cross-sectional shape of the upper end 26C is formed in a rectangular ring shape as a whole, and the vertex portion of the upper end 26C may be curved.

The lower end of the connecting passage 26 may be the outlet 25, and the sectional shape thereof may be a circular shape. In more detail, the lower end of the first connection passage 26A may be the first outlet 25A, and the cross-sectional shape thereof may be arc-shaped. The lower end of the second connection passage 26B may be the second outlet 25B, and the cross section may be arc-shaped.

The connection passage 26 may be formed to have a shape gradually becoming round from the upper end 26C to the outlet 25 so as to correspond to the shape of the upper end 26C and the shape of the outlet 25 have.

The upper end 26C of the connecting flow passage 26 is divided into a region having a first curvature (hereinafter referred to as a first curvature region 26D) located below the inlets 21, 22, 23 and 24, (Hereinafter referred to as a second curvature region 26E) located below the peripheries of the openings 21, 22, 23, 24 and having a second curvature larger than the first curvature.

The second curvature region 26E may be a region extending in the horizontal direction in the first curvature region 26D. That is, the first curvature region 26D and the second curvature region 26E can be alternately disposed in the horizontal direction along the upper end 26C of the coupling flow path 26. [

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

The cross-sectional shape of the connection passage 26 gradually becomes closer to the circular shape as it goes downward.

The flow path located below the first curvature region 26D of the connection flow path 26 may have a shape in which the curvature gradually increases.

The flow path located below the second curvature region 26E of the coupling flow path 26 may have a shape in which the curvature thereof is constant or gradually decreases or gradually increases in a downward direction.

When the second curvature is equal to the third curvature, the flow path located below the second curvature region 26E of the coupling flow path 26 can be kept constant in the downward direction.

When the second curvature is larger than the third curvature, the curvature of the flow path located below the second curvature region 26E of the coupling flow path 26 may gradually decrease toward the lower direction.

In operation of the ceiling type air conditioner, the air having passed through the plurality of inlets 21, 22, 23 and 24 can be dropped into the first connection passage 26A, And may be discharged from the flow passage 26A to the first outlet 25A and then through the first outlet 25A. The other part of the air dropped into the first connection passage 26A flows from the first connection passage 26A to the second connection passage 26B and then flows from the second connection passage 26B to the second outlet 25B Lt; / RTI &gt;

That is, in the present embodiment, the air introduced into the plurality of inlets 21, 22, 23, 24 can be discharged to the outlet 25 while spreading in the horizontal direction in the connection passage 26, The air conditioner can discharge the air conditioned to the entire area of the outlet 25. [

&Lt; Inner guide surface and outer guide surface &

9 and 10, the connecting passage 26 may be positioned between the inner guide surface 65 and the outer guide surface 55. More specifically, the lower flow path of the connecting flow passage 26 may be positioned between the inner guide surface 65 and the outer guide surface 55.

The inner guide surface 65 may be located in the inner passage body 60 to be described later and the outer guide surface 55 may be located in the main passage body 50 to be described later.

The inner guide surface 65 and the outer guide surface 55 may be arranged to face each other. More specifically, an upper part of the inner guide surface 65 with respect to the horizontal direction can face the outer guide surface 55. [

The outer guide surface 55 may overlap the inner guide surface 65 with respect to the horizontal direction.

The inner guide surface 65 can be formed such that the inclination thereof is kept constant from the upper end 63A to the lower end 63C, or gradually becomes gentle. More specifically, the slope in some areas of the inner guide surface 65 may be kept constant, and the slope in some other areas may gradually become gentle.

At least a part of the inner guide surface 65 may be concave.

Therefore, the airflow guided by the inner guide surface 65 can be switched from a near-vertical airflow to a near-horizontal airflow.

&Lt; First inner guide surface and second inner guide surface &

The inner guide surface 65 may include a first inner guide surface 65A constituting the first connection passage 26A and a second inner guide surface 65B constituting the second connection passage 26B .

A first connection passage 26A may be formed between the first inner guide surface 65A and the outer guide surface 55 and a second connection path may be formed between the second inner guide surface 65B and the outer guide surface 55. [ The flow path 26B can be formed.

At least a part of the first inner guide surface 65A can see the inlets 21, 22, 23 and 24 with respect to the vertical direction. At least a part of the second inner guide surface 65B can be seen between a pair of inlets 21, 22, 23, 24 adjacent to each other in the up-and-down direction. That is, at least a part of the second inner guide surface 65B can be viewed from the connecting portion 53 with respect to the vertical direction.

The first inner guide surface 65A may be an inlet facing surface, and the second inner guide surface 65B may be a connecting portion facing surface.

The first inner guide surface 65A may be positioned on the side of the second inner guide surface 65B. That is, the first inner guide surface 65A and the second inner guide surface 65B can be alternately disposed along the circumferential direction of the inner passage body 60. [

The first outlet 25A may be located at the lower end 63C of the first inner guide surface 65A. More specifically, a first outlet 25A may be formed between the lower end of the first inner guide surface 65A and the lower end of the outer guide surface.

And the second outlet 25B may be positioned at the lower end of the second inner guide surface 65B. More specifically, a second outlet 25B may be formed between the lower end of the second inner guide surface 65B and the lower end of the outer guide surface 55.

<Internal area and exposure area>

The inner guide surface 65 may include an inner region 66 and an exposed region 67.

The inner area 66 is an area located inside the discharge panel 2 and the exposed area 67 may be an area exposed to the outside of the discharge panel 2. [

The inner area 66 can face the outer guide surface 55 with respect to the horizontal direction and the exposed area 67 can be exposed to the outside with respect to the horizontal direction.

The exposed region 67 may be exposed to the outside through the outlet 25. [

The exposed region 67 may be located below the inner region 66. Thus, in operation of the ceiling-mounted air conditioner, the air that has flowed into the connecting passage 26 can be guided in turn by the inner region 66 and the exposed region 67, (25).

The upper end of the inner guide surface 65 may be the upper end of the inner area 66 and the upper end of the inner guide surface 65 and the upper end of the inner area 66 will be described using the same reference numeral 63A .

The lower end of the inner guide surface 65 may be the lower end of the exposed area 67 and the lower end of the inner guide surface 65 and the lower end of the exposed area 67 may be denoted by the same reference numeral 63C Explain.

The lower end of the inner area 66 and the upper end of the exposed area 67 can coincide. That is, the upper end of the exposed area 67 may be a reference line that divides the inner guide surface 65 into the inner area 66 and the exposed area 67. Therefore, the lower end of the inner region 66 and the upper end of the exposed region 67 will be described using the same reference numeral 63B.

The upper end 63B of the exposed region 67 may face the lower end 54C of the outer guide surface 55 in the horizontal direction.

The exposed region 67 may be configured such that the inclination of the exposed region 67 becomes gradually from the upper end 63B to the lower end 63C.

The inner region 66 may include a first inner region 66A and a second inner region 66B and the exposed region 67 may include a first exposed region 67A and a second exposed region 67B can do. At this time, the first inner area 66A and the first exposed area 67A may be part of the first inner guide surface 65A, respectively, and the second inner area 66B and the second exposed area 67B may be respectively And may be part of the second inner guide surface 65B.

&Lt; First Internal Region and Second Internal Region >

The first inner region 66A and the second inner region 66B may be alternately disposed along the circumferential direction of the inner flow path body 60.

The first inner region 66A may be an upper portion of the first inner guide surface 65A and the second inner region 66B may be an upper portion of the second inner guide surface 65B.

The horizontal distance between the first inner area 66A and the outer guide surface 55 may mean the horizontal distance D3 of the first connection passage 26A. The horizontal distance between the second inner area 66B and the outer guide surface 55 may mean the horizontal distance D4 of the second connection passage 26B.

The first inner region 66A may be formed more gently than the second inner region 66B. More specifically, the average slope of the first inner region 66A may be formed more gently than the average slope of the second inner region 66B. In this case, the average slope may mean a slope of a straight line connecting the upper end 63A and the lower end 63B of each of the inner areas 66A and 66B.

The first inner region 66A may be formed so that the inclination of the first inner region 66A gradually decreases from the upper end 63A to the lower end 63B. On the other hand, the inclination of the second inner region 66B can be maintained constant between the upper end 63A and the lower end 63B.

The slope at the lower end 63B of the first inner region 66A can be formed more gently than the slope at the lower end 63B of the second inner region 66B.

&Lt; First exposed area and second exposed area &

The first exposed region 67A and the second exposed region 67B may be alternately disposed along the circumferential direction of the inner passage body 60. [

The first exposed region 67A may correspond to each of the plurality of inlets 21, 22, 23 and 24 and the second exposed region 67B may correspond to each of the plurality of inlets 21, 22, Or between a pair of adjacent ones of the openings 24, as shown in FIG.

And the second exposed region 67B may correspond to the connection portion 53. [

The first exposed area 67A may be a lower portion of the first inner guide surface 65A and the second exposed area 67B may be a lower portion of the second inner guide surface 65B.

The first exposed region 67A may be located below the first inner region 66A and the second exposed region 67B may be located below the second inner region 66B.

The first outlet 25A may be formed between the lower end 63C of the first exposed region 67A and the lower end 54C of the outer guide surface 55 and the lower end 63C of the second exposed region 67B may be formed. And the lower end 54C of the outer guide surface 55 may be formed with a second outlet 25B.

At least a part of the first exposed area 67A may overlap with the openings 21, 22, 23 and 24 in the vertical direction and at least a part of the second exposed area 67B may overlap with the connecting part 53, Direction.

FIG. 11 is a bottom view of an enlarged portion of an outlet of a ceiling-type air conditioner according to an embodiment of the present invention, FIG. 12 is a view of a first outlet shown in FIG. 9 in a horizontal direction, Fig. 10 is a view of the second outlet shown in Fig. 10 with respect to the horizontal direction. Fig.

At the first outlet 25A, the air introduced from the corresponding inlet 21, 22, 23, 24 is immediately taken out, while at the second outlet 25B, The flow rate of the airflow discharged to the second outlet 25B may be slower than the flow rate of the airflow discharged to the first outlet 25A.

If the flow rate of the airflow discharged to the second outlet 25B is not sufficiently fast, there is a fear that the airflow discharged from the second outlet is sucked back into the through-hole 31 of the suction panel 3. The cold air flows along the bottom surface of the suction panel 3 so that the area W between the second outlet 25B and the through hole 31 of the bottom surface of the suction panel 3 becomes dewy Can occur.

In order to prevent the dew condensation, it is required to prevent the airflow discharged to the second outlet 25B from being blown by the suction panel 3.

&Lt; The shape of the first exposed region and the second exposed region &

Referring to FIGS. 12 and 13, each of the exposed areas 67A and 67B may be located below the deco panel 90. [0156] FIG.

The slope G2 at the upper end 63B of the second exposed region 67B may be formed closer to perpendicular to the slope G1 at the upper end 63B of the first exposed region 67A. Preferably, the slope G2 at the upper end 63B of the second exposed region 67B may be formed to be vertical.

The slope G4 at the lower end 63C of the second exposed region 67B can be formed more gently than the slope G3 at the lower end 63C of the first exposed region 67A. Preferably, the inclination G4 at the lower end 63C of the second exposed region 67B may be formed to be horizontal.

The maximum curvature of the second exposed region 67B may be greater than the maximum curvature of the first exposed region 67A. More specifically, the maximum curvature for the vertical direction of the second exposed region 67B may be greater than the maximum curvature for the vertical direction of the first exposed region 67A.

In this case, the maximum curvature may mean the largest curvature among the curvatures of the exposed regions 67A and 67B.

The maximum distance H2 between the imaginary straight line F2 connecting the upper end 63B and the lower end 63C of the second exposed region 67B and the second exposed region 67B is smaller than the maximum distance H2 between the first exposed region 67A, May be larger than the maximum distance H1 between the imaginary straight line F1 connecting the upper end 63B and the lower end 63C and the first exposure region 67A.

Also, the slope change rate of the second exposed region 67B may be greater than the slope change rate of the first exposed region 67A. That is, the angle? 2 formed by the inclination G2 at the upper end 63B of the second exposed area 67B and the inclination G4 at the lower end 63C is equal to the inclination G2 at the upper end 63B 1 between the slope G1 at the lower end 63C and the slope G3 at the lower end 63C.

For example, the angle 2 between the slope G2 at the upper end 63B of the second exposed area 67B and the slope G4 at the lower end 63C may be a right angle, and the first exposure area 1 formed by the slope G1 at the upper end 63B and the slope G3 at the lower end 63C of the slider 67A may be an obtuse angle.

With this arrangement, the airflow direction of the air guided by the first exposed region 67A is relatively smoothly changed, and the airflow direction of the air guided by the second exposed region 67B can be abruptly changed. Therefore, the air discharged to the second outlet 25B can form an air flow closer to the horizontal direction as compared with the air discharged to the first outlet 25A, It is possible to prevent the phenomenon of the re-sucking into the through-hole 31 of the casing 3.

&Lt; Detailed Configuration of Second Exposed Area >

The second exposed region 67B includes a first region 671 including the upper end 63B of the second exposed region 67B and a second region 67B including the lower end 63C of the second exposed region 67B. A third region 673 positioned between the first region 671 and the second region 672,

The first region 671 may have a constant slope. For example, the entire first area 671 may have the same slope as the slope G2 of the upper end 63B of the second exposed area 67B.

The first region 671 may be formed vertically.

It is also possible that the first region 671 has a curved surface that is not constant and has a vertical inclination. In this case, the curvature of the first area 671 may be smaller than the curvature of the first exposure area 67A.

The second region 672 may be spaced apart from the first region 671.

The second region 672 may have a constant slope that is smaller than the slope of the first region 671. For example, the entire second region 672 may have the same slope as the slope G4 of the lower end 63C of the second exposed region 67B.

The second region 672 may be formed horizontally.

It is also possible that the inclination of the second area 672 is not constant but a curved surface close to the horizontal. In this case, the curvature of the second area 672 may be smaller than the curvature of the first exposed area 67A.

The third region 673 may be located between the first region 671 and the second region 672. The third area 673 may connect the first area 671 and the second area 672.

The third area 673 can be smoothly connected to the first area 671 and the second area 672 successively and smoothly without being bent or tangled.

The third region 673 may have a gentle slope from the first region 671 to the second region 672.

The curvature of the third region 673 may be larger than that of the first region 671 and the second region 672. [ In addition, the curvature of the third area 673 may be larger than the curvature of the first exposure area 67A.

FIG. 14 is an exploded perspective view of a discharge panel according to an embodiment of the present invention, FIG. 15 is a perspective view illustrating a main flow body according to an embodiment of the present invention, FIG. 17 is a plan view of the main flow path body according to an embodiment of the present invention, FIG. 18 is a bottom view of the main flow path body according to an embodiment of the present invention, FIG. 19 20 is a plan view of an inner flow body according to an embodiment of the present invention.

The discharge panel 2 may include a main flow body 50 and an inner flow body 60 coupled to the main flow body 50.

The discharge panel 2 may further include an outer cover 70 for guiding the air that has passed through the air blowing passages 7, 8, 9 and 10 to the connecting flow path 26. The discharge panel 2 may further include a decor cover 90 coupled to the main flow body 50.

The discharge panel 2 can flow air through the pair of spaced guides 54 and 64. [ The air can be discharged and guided in the direction in which the pair of guides 54, 64 guide.

<One pair of guides>

Any one of the pair of guides 54 and 64 may be formed in the main flow path body 50 and the other one of the pair of guides 54 and 64 may be formed in the inner flow path body 60 have.

The pair of guides 54 and 64 includes an outer guide 54 positioned on the outer side and an inner guide 64 positioned on the inner side of the outer guide 54 so as to be spaced apart from the outer guide 54 can do.

&Lt; Location of each outer guide and inner guide and connecting channel >

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

The inner guide 64 may be formed in the inner passage body 60. The inner guide 64 may be formed on the outer circumferential surface of the inner passage body 60.

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

<Hollow section of discharge panel>

The discharge panel 2 can be formed with a hollow portion 16 opened in the up and down direction and the hollow portion 16 is formed so that the plane F1 and the curved surface R1 alternate along the inner circumference of the discharge panel 2. [ As shown in FIG.

The hollow portion 16 can be connected by a curved surface R1 and a pair of curved surfaces R1 can be connected by a plane F1. The hollow portion 16 may be formed by four planes F1 and four curved surfaces R1.

The hollow portion 16 may be formed in the main flow path body 50 and the inner flow path body 60, respectively. The upper hollow portion 20 formed in the main flow path body 50 and the lower hollow portion 68 formed in the inner flow path body 60 can communicate with each other in the vertical direction.

The upper hollow portion 20 and the lower hollow portion 68 may have the same shape, and each of them may include a plane F1 and a curved surface R1.

<Main Eurobody>

The main channel body 50 may be formed with an upper hollow portion 20 penetrating in the vertical direction. The upper hollow portion 20 can function as a suction passage 16 through which the air having passed through the suction panel 3 passes to be sucked into the indoor unit 1. [ The upper hollow portion 20 can be positioned above the suction panel 3 and can be positioned below the inner suction hole 6 of the indoor unit 1. [

The main flow path body 50 may have an opening formed between the outer periphery and the upper hollow portion 20 to form a plurality of inlets 21, 22, 23 and 24.

<Size of main main body>

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

<Service hall and deco cover of Main Eurobodies>

A service hole 59 may be formed in the main flow path body 50 so as to face the coupling part 12 for coupling the indoor unit 1 to the ceiling. The service holes 59 may be formed in the main flow path body 50 by the number of the fastening portions 12. The service hole 59 may be an opening formed to be opened in the up-and-down direction. The service hole 59 may be open at its side.

The discharge panel 2 may further include a decor cover 90 for covering the service hole 59. The decorative cover 90 can form the rim appearance of the discharge panel 2. [

<Detailed structure of main flow body>

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

The upper body part 51 may be formed so that the upper hollow part 20 passes through in the vertical direction at the center. The upper body part 51 may be connected to the outer body part 52, which is larger than the upper body part 52, by a connection part 53.

The outer body portion 52 may be formed larger than the upper body portion 51. That is, the outer body part 52 may be located outside the upper body part 51. [

The height of the outer body portion 52 may be lower than the height of the upper body portion 51. That is, the upper body part 51 may be positioned above the outer body part 52. [

The outer body portion 52 may have an outer guide surface 55.

The connecting portion 53 can connect the upper body portion 51 and the outer body portion 52, which are different in height and size.

<Upper body part of main flow body>

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

The upper hollow portion 20 may have a rectangular cross-sectional shape, and four vertexes may be rounded. The inner circumferential surface 51A of the upper body portion 51 may be alternately formed with the plane F1 and the curved surface R1 along the inner circumferential surface.

The upper body part 51 may constitute an upper flow path of the connection flow path 26 together with the outer cover 70.

The upper body portion 51 can form the inlets 21, 22, 23 and 24 and the lower portions of the inlets 21, 22, 23 and 24 are connected to the outer cover 70 The upper flow path of the connection flow path 26 can be formed.

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

The openings 21, 22, 23 and 24 may be formed between the upper body portion 51 and the outer cover 70 with respect to the radial direction of the discharge panel 2, The connection portions 53 may be formed between the pair of connection portions 53 with respect to the direction.

The outer circumferential surface 51B of the upper body portion 51 may be spaced apart from the one surface 70A of the outer cover 70. [ The polygonal openings 21, 22, 23 and 24 may be vertically penetrated between the outer circumferential surface 51B of the upper body portion 51 and the one surface 70A of the outer cover 70 .

The upper body part 51 is formed in a rectangular shape, and four vertexes may be rounded.

The outer peripheral surface of the upper body portion 51 may include an upper plane F2 and lower curved surfaces R3 and R4 lower than the upper plane F2. 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 can form the inlets 21, 22, 23 and 24 together with the connecting portion 53 and the outer cover 70. [

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

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

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

The inlets 21, 22, 23 and 24 may be formed in a substantially rectangular shape between the upper plane F2 and the side ends 53C of the connecting portions 53 and one side 70A of the outer cover 70 have.

The lower curved surface R3 (R4) may be a curved surface having a curvature close to the flat surface. Air that has passed through the inlets 21, 22, 23 and 24 can be guided to the lower curves R3 and R4.

The lower curved face R3 and the lower curved face R4 have a region R3 facing the one face 70A of the outer cover 70 in the horizontal direction and a region facing the connecting portion 53 in the horizontal direction R4, hereinafter referred to as a fourth region).

The third region R3 and the one side 70A of the outer cover 70 may be regions where the air that has passed through the openings 21, 22, 23, and 24 flows in.

The space between the fourth region R4 and the connecting portion 53 may be a space in which the air sucked through the inlets 21, 22, 23, and 24 adjacent to each other may be mixed.

The third region R3 and the fourth region R4 may be configured such that their curvatures are different from each other.

The third region R3 may be a curved surface close to the 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 be more curved than the third region R3.

An empty space can be formed in the radial direction of the discharge panel 2 between the lower curved surface R3 of the upper body portion 51 and one surface 70A of the outer cover 70, The direction width can be repeatedly increased and decreased in the circumferential direction of the discharge panel 2.

<Outer body part>

The main channel 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 guide surface 55 which is convex toward the inner guide 64. The outer guide 54 may be a part of the outer body 52.

The outer body portion 52 may include a ring-shaped mounting portion 56 and an outer guide 54 formed on the inner periphery of the mounting portion 56.

<Mounting portion of outer body portion>

The mounting portion 56 may be formed in the shape of an annular plate. The outer cover 70, the decor cover 90, and the elevation guide 110 may be mounted on the mounting portion 56. [

<Outer guide of outer body part>

The outer guide 54 can face the outer circumferential surface of the inner passage body 60. The outer guide 54 may have an outer guide surface 55 formed thereon.

The outer guide 54 may include a first guide 54A positioned below each of the inlets 21, 22, 23, The outer guide 54 may further include a second guide 54B connected to a side connection portion 53B described later.

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

The outer guide surface 55 may be a surface of the outer guide 54 facing the outer circumferential surface of the inner passage body 60.

The outer guide surface 55 may be convexly curved toward the inner passage body 60.

The first guide 54A may be an enlarged portion that gradually expands in size.

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

<Connection>

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

The upper portion of the connection portion 53 may be connected to the outer periphery of the upper body portion 51 and the lower portion may be connected to the upper end of the outer body portion 52. The lower portion of the connecting portion 53 may be connected to the upper end of the outer guide 54.

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

The upper connecting portion 53A may extend horizontally at a portion of the upper outer circumference of the upper body portion 51. [ The upper connecting portion 53A may be formed orthogonal to the side connecting portion 53B.

The upper connecting portion 53A can face the outer circumferential surface of the inner flow body 60 in the vertical direction.

The upper connecting portion 53A may have a side end 53C orthogonal to the upper plane F2 and the inlets 21, 22, 23 and 24 may be provided on the upper plane F2 of the upper body portion 51, A side end 53C of the upper connecting portion 53A and a side 70A of the outer cover 70. [

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

The side connection portion 53B may be formed 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 position of connection parts>

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 spaced apart from each other. The number of the connection portions 53 may be equal to the number of the inlets 21, 22, 23, The discharge panel 2 may be provided with an inlet 21, 22, 23, 24 between a pair of adjacent connecting portions 53.

That is, the connection portion 53 may be located between a pair of adjacent inlets among the plurality of inlets 21, 22, 23, and 24.

<Internal space of main main body>

The main flow path body 50 may have a space S2 in which a bottom surface is opened. The main flow path body 50 may have a space S2 opened at the bottom thereof on the inner side of the outer guide 54. [ The space S2 of the main flow path body 50 may be formed to be larger than the outer circumference of the upper hollow portion 20. [ The space S2 of the main flow path body 50 may be an empty space surrounded by the connecting portion 53 and the outer guide 54. [

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

<Slit of Main Euro Body>

The slit 57 through which the air guide 100 passes may be opened in the main flow path body 50 in the up and down direction. 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 the slits 57 may be the same as the number of the air guides 100.

A pair of ribs 58 may be spaced apart from the main flow path body 50 and a slit 57 may be formed between the pair of ribs 58 in a vertical direction. The air guide 100 can be guided up and down by the pair of ribs 58 while passing through the slit 57 and the air guide 100 can be raised and lowered more stably by the pair of ribs 58 .

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

The lower end of the outer body portion 52 may form an outlet 25 together with the lower end of the outer peripheral surface of the inner flow body 60.

<Inner Euro Body>

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

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

The upper surface 69 of the inner oil body 60 can be coupled to the periphery of the upper hollow portion 20. [

The upper surface 69 of the inner passage body 60 can be brought into contact with the lower surface of the upper body portion 51.

The inner passage body 60 may be gradually expanded toward the lower portion.

The inner channel body 60 may be formed with a lower hollow portion 68 through which the air passes, in the vertical direction. The lower hollow portion 68 can function as a suction passage 16 through which the air having passed through the suction panel 3 passes to be sucked into the indoor unit 1. [

Air that has passed through the lower hollow portion 68 of the inner flow body 60 can be sucked into the indoor unit 1 through the upper hollow portion 20 of the main flow path body 50 when the blower 4 is driven have.

The outer cover 70 may be coupled to the main flow body 50 and may form an inlet 21, 22, 23, 24 together with the main flow body 50.

The inner passage body 60 may have an inner guide surface 65. The outer peripheral surface of the inner passage body 60 may include an inner guide surface 65.

The outer peripheral surface of the inner passage body 60 has a first inner guide surface 65A facing the inlet 21, 22, 23 and 24 vertically and a second inner guide surface 65A facing the connecting portion 53 in the up- And a second inner guide surface 65B.

The first inner guide surface 65A and the second inner guide surface 65B may be alternately formed along the outer circumferential surface of the inner passage body 60. [

The upper surface 69 of the inner passage body 60 is formed in a rectangular ring shape as a whole, and the vertex portion thereof may be curved.

The outer periphery of the upper surface 69 of the inner flow 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 disposed along the outer circumference of the inner passage body 60. [

The lower end 63C of the inner passage body 60 may have a circular shape.

The outer circumferential surface 65 of the inner passage body 60 is formed on the upper surface of the inner passage body 60 so as to correspond to the outer circumferential shape of the upper surface of the inner passage body 60 and the lower end 63C shape of the inner passage body 60, And may be formed to have a shape gradually becoming round from the outer circumference to the lower end (63C) of the inner flow body (60).

&Lt; Position and shape of inner flow body >

The upper end of the inner flow body 60 may be inserted into the space S2 of the main flow body 50 and the lower end of the inner flow body 60 may be lower than the main flow body 50. [

The inner passage body 60 may be gradually expanded toward the lower portion. The upper end of the inner guide 64 can face the outer guide 54 in the horizontal direction. The lower end of the inner guide 64 can face the outer guide 54 in the vertical direction.

The inner passage body 60 may have an inner guide 64 formed on an outer circumferential surface thereof. An inner guide surface (65) may be formed on the outer periphery of the inner passage body (60). The inner guide 64 may include an inner guide surface 65. The outer peripheral surface of the inner guide 64 may be the inner guide surface 65. The inner peripheral surface of the inner guide 64 and the inner guide surface will be described using the same reference numeral 65. [

The inner guide 64 may include an inner guide surface 65 recessed and recessed. The inner guide surface 65 can face the outer guide surface 55 in the horizontal direction with the upper end 63A. The upper end 63A of the inner guide surface 65 may be outside the upper surface 69 of the inner passage body 60. The lower end 63C of the inner guide surface 65 can face the outer guide surface 55 in the vertical direction.

A lower flow path of the connecting flow path 26 may be formed between the inner guide 64 and the outer guide 54. [

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

The inner passage body 60 may include an outer guide 63 and an outlet end 63C spaced apart from the outer guide 54 in the vertical direction. The exit end 63C may be the same as the lower end 63C of the inner guide surface 65. The lower end and the exit end of the inner guide surface 65 will be described using the same reference numeral 63C.

&Lt; Outlet end of inner body and outer guide &

The outlet end 63C can form the outer guide 54 and the outlet 25. That is, the outlet 25 may be formed between the outlet end 63C and the outer guide 54. [

The outlet end 63C of the inner passage body 60 may be the lower outer periphery of the inner guide 64. [ The lower end of the inner guide 64 may be the lower outer periphery of the inner guide 64 and the outlet end 63C of the inner passage body 60 may be the lower end of the inner guide 64. [

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

At least a part of the outer circumferential surface of the inner oil body 60 faces the main flow body 50 to form a flow path forming body 61 for forming the main flow body 50 and the outlet 25 and the connecting flow path 26 And an intensity-strengthening body 62 coupled with the flow-path forming body 61.

<Flow forming body>

The upper portion of the flow path forming body 61 may be coupled to the lower portion of the upper body portion 51. The flow path forming body 61 may have a hollow portion opened in the up and down direction inside thereof. The outer circumference of the flow path forming body 61 may be the inner guide 64. [

<Strength reinforcement body>

The strength reinforcing body 62 includes a lower reinforcing body 62A coupled to a lower surface of the flow path forming body 61 and a lower reinforcing body 62B formed to protrude upward in the inner circumferential direction of the lower reinforcing body 62A, And an upper reinforcing body 62 interpolated into the hollow. The strength reinforcing body 62 may include a strength reinforcing rib 62C protruding from the upper reinforcing body 62. [ The strength reinforcing rib 62C can be inserted into the fitting slot formed on the inner circumferential surface of the flow path forming body 61 and can be engaged with the flow path forming body 61. [

<Outer cover>

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

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

The outer cover 70 may cover the lifting mechanism 120. The outer cover 70 may be an elevator cover for protecting the elevator mechanism 120. The outer cover 70 may cover the elevating mechanism 120 and the elevating guide 110 together.

The outer cover 70 can be seated on the first guide 54A and guide the air introduced into the polygonal openings 21, 22, 23 and 23 to the first guide 54A, The air introduced into the inlet can be guided to the first guide 54A along one side 70A of the outer cover 70 and this air flows along the outer guide surface 55 of the first guide 54A at the outlet 25).

<Detailed structure of outer cover>

One side 70A of the outer cover 70 forms an inlet 21, 22, 23 and 24 on the upper side and the upper one of the side 70A may be a non-curved plane.

The outer cover 70 includes an upper cover portion 71 covering the upper surface of the elevation guide 110 and the elevation mechanism 120, a flow path body portion 72 extending downward from the upper cover portion 71, And a side cover portion 73 extending downward from the cover portion 71 and covering the whole or a part of the outer circumferential surface of the elevation guide 110.

&Lt; Flow body of outer cover >

The channel body 72 may form the main channel body 50 and the inlets 21, 22, 23 and 24. The channel body 72 may be disposed on the outer guide 54 so as to be spaced apart from the upper body portion 51. The channel body 72 may face the outer surface of the upper body part 51 and may be provided with an inlet 21, 22, 23, 24 May be formed.

The number of the outer covers 70 may be equal to the number of the openings 21, 22, 23,

The channel body 72 may constitute an upper channel of the connection channel 26 together with the upper body part 51 and the connection part 53. The lower end of the channel body 72 can be brought into contact with the upper end of the outer guide 54. The lower end of the channel body 72 may be seated and supported on the upper end of the outer guide 54. [ The upper flow path of the connection flow path 26 may be formed between the upper body portion 51 and the flow path body portion 72. The channel body 72 can face the upper plane F2 formed on the outer circumferential surface 51B of the upper body portion 51. [ The channel body 72 may be a flat plate having a flat surface facing the upper plane F2.

The outer cover 70 may be formed with a space for accommodating a part of the elevation guide 110 and the elevating mechanism 120 between the flow path body 72 and the side cover portion 73. The receiving space of the outer cover 70 can be opened at the bottom surface.

The lower end of the side cover portion 73 can be brought into contact with the elevation guide 110 or the mounting portion 56. The lower end of the side cover portion 73 may be seated and supported on the elevation guide 110 or the mounting portion 56.

The receiving space of the outer cover 70 may be formed between the flow path body 72 and the side cover portion 73 and the upper surface thereof may be clogged with the upper cover portion 71, have.

<Deco cover>

The decor cover 90 may be coupled to the main flow path body 50. More specifically, the décor cover 90 can be mounted on the outer body portion 52, and more particularly, mounted on the mounting portion 56.

The decor cover 90 may be provided outside the air guide 100.

The decor cover 90 may include a lower plate 91 at least partially covering the lower surface of the mounting portion 56 and a hollow cylindrical portion 92 protruding upward from the outer periphery of the lower plate 91.

The lower plate 91 may be disposed on the lower side of the main flow path body 50.

The hollow cylinder portion 92 may be formed larger than the outer body portion 52. The hollow cylindrical portion 92 can surround and protect the outer circumferential surface of the bypass flow body 130.

An inner part of the lower plate 91 of the decorative cover 90 may cover the bottom surface of the mounting part 56 and an outer part of the lower plate may cover the bottom surface of the bypass channel body 130.

FIG. 21 is a perspective view illustrating an outer cover, an air guide, and an elevation guide according to an embodiment of the present invention. FIG. 22 is a perspective view of the outer cover shown in FIG. FIG. 24 is a perspective view of the air guide shown in FIG. 23 when the air guide is separated from the air guide, FIG. 25 is a perspective view of the air guide, FIG. 26 is a cross-sectional view of a ceiling type air conditioner according to an embodiment of the present invention. FIG. 26 is a cross-sectional view of a ceiling type air conditioner according to an embodiment of the present invention. FIG. 27 is a cross-sectional view illustrating an airflow taken out from a ceiling-type air conditioner according to an embodiment of the present invention to a second outlet. FIG.

<Suction panel>

25 and 26, the suction panel 3 may be disposed below the inner passage body 60. [0054] The suction panel 3 may be arranged such that a portion of the suction panel 3 faces the lower hollow portion 68. The suction panel 3 may be disposed on the bottom surface of the inner passage body 60. The suction panel 3 may be formed with a plurality of through holes 31 through which air is sucked into the lower hollow portion 68. The plurality of through holes may be all or part of the lower hollow portion 68.

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

<Air guide>

As shown in FIGS. 25 and 26, the air guide 100 is arranged to be lifted up and down on the main flow path body 50, so that the air flow of the air discharged to the outlet 25 can be varied.

When the air guide 100 descends, the air discharged to the outlet 25 may be guided in the direction in which the air guide 100 guides after the air guide 100 hits the air guide 100. When the air guide 100 is lifted up, the air discharged to the outlet 25 can pass through the lower end 103 of the air guide 100. The air guide 100 may be a flow guide capable of switching the flow path of air while being lifted and lowered.

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

The ceiling-mounted air conditioner can be configured such that a circular air guide having a circular shape can be raised and lowered, and a plurality of arc-shaped air guides 100 can be independently elevably arranged.

<Shape of Single Air Guide and Air Guide>

When the ceiling type air conditioner includes one circular air guide, the ceiling type air conditioner can form a horizontal air flow when one circular air guide is lifted, and 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 air flow or only one vertical air flow.

<Shape of a plurality of air guides and air guides>

The ceiling type air conditioner may include a plurality of arcuate air guides 100, and a plurality of arcuate air guides 100 may be raised and lowered independently of each other. In this case, a part of the plurality of air guides 100 can be raised to form a horizontal air flow, and the remaining air guides 100 can be lowered to form a vertical air flow. That is, when a plurality of arcuate air guides 100 are independently raised and lowered, the ceiling-mounted air conditioner can form a three-dimensional air flow in which a horizontal air stream and a vertical air stream are mixed, and these three- have.

As shown in FIG. 22, the air guides 100 may be disposed apart from each other. The gap 109 may be positioned between a pair of air guides 100 adjacent to each other.

&Lt; the exit position, the lower end position of the outer guide, and the lower end position of the air guide &

The outlet 25 may be between the outlet end 63C of the inner flow body 60 and the lower end 54C of the outer guide 54. [

The distance D5 from the central axis of the main flow 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 flow body 60 to the outlet end 63C .

The distance D7 from the central axis of the main flow body 50 to the lower end 103 of the air guide 100 is longer than the distance D5 from the central axis of the inner flow body 60 to the outlet end 63C have.

26, when the air guide 100 is lowered, the inner surface 101 of the air guide 100 may be arranged to face the first outlet 25A with respect to the horizontal direction.

The air discharged to the first outlet 25A can be guided by the inner surface 101 of the lowered air guide 100. [

27, a gap 109 between a pair of air guides 100 adjacent to each other among a plurality of air guides 100 may be arranged so as to face the second outlet 25B with respect to the horizontal direction have.

The air discharged to the second outlet 25B does not hit the air guide 100 but can escape to the gap 109 between the pair of air guides 100. [ This is advantageous in that the air discharged in the horizontal direction at the second outlet 25B due to the shape of the second exposed area 67B is prevented from being blown by the air guide 100 to the suction panel 3 I have.

<Main features of air guide>

The air guide 100 can guide air escaping from the outlet 25 while being positioned outside the outlet 25. The air guide 100 can be an outer air guide, an outer wind direction adjusting member, or an outer flow guide. The air guide 100 can be disposed on the discharge panel 2 so as to be able to descend to the side of the outlet 25 to guide the air discharged to the outlet 25. [ More specifically, the air guide 100 may be arranged to be capable of descending to the side of the first outlet 25A to guide the air discharged to the first outlet 25A.

<Inner and outer surfaces of air guide>

The air guide 100 preferably has a circular cross-sectional shape. The air guide 100 may include an inner surface 101 facing the first outlet 25A when the air guide 100 descends. The inner surface 101 can orient the first outlet 25A in the horizontal direction when the air guide 100 is lowered. The inner surface 101 may be a concave surface facing the first outlet 25A in the horizontal direction.

The inner surface 101 may be a flow guide surface for directly guiding the air that has passed through the first outlet 25A when the air guide 100 is lowered. The inner surface 101 may be a vertical guide surface for switching the air passing through the first outlet 25A in the downward direction.

The inner surface 101 may be a curved surface in the horizontal direction and a plane in the vertical direction.

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

A plurality of air guides (100) may be disposed 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. [ The plurality of air guides 100 can respectively see the first outlet 25A spaced from each other.

The air guide 100 may be a wind direction adjusting member for adjusting the direction of the air discharged to the first outlet 25A. The air guide 100 can adjust the airflow direction of the air flowing along the outer guide 54 in a state in which the air guide 100 is disposed in the discharge panel 2 so as to be movable up and down. The air guide 100 can change the air flow discharged to the first outlet 25A according to the height.

&Lt; Air flow according to the height of air guide >

The air discharged to the first outlet 25A flows along the lower end 103 of the air guide 100 or bumps against the inner surface 101 of the air guide 100 according to the height of the air guide 100, Direction can be switched.

When the air guide 100 is raised deeply into the slit 57, the portion located under the slit 57 can be absent or minimized.

The air guide 100 may be provided with a lug 106. The rack 106 may be provided on the upper portion of the air guide 100 so as to protrude upward.

The ceiling-mounted air conditioner may include a light emitting device 108 (see FIG. 24) for irradiating 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 light source such as a light source installed on the air guide 100 and an LED installed on a surface facing the one end of the air guide 100 in the package.

<Lift guide>

The elevation guide 110 can guide the air guide 100 to move up and down.

The elevation guide 110 may be disposed in the main flow path body 50. More specifically, the elevation guide 110 can be disposed in the outer body portion 52, and more particularly, can be disposed in the mounting portion 56.

Further, the elevation guide 110 may be disposed inside the outer cover 70. That is, the elevation guide 110 may be located in the inner space defined by the outer body 52 and the outer cover 70.

The elevating guide 110 may include a receiving groove S3 in which the air guide 100 is lifted and received. The receiving groove S3 may be formed to have a lower end open to the elevation guide 110. [ The elevation guide 110 may have the same overall shape as the air guide 100 and may be formed to be larger than the air guide 100.

The ceiling type air conditioner can be arranged such that a plurality of air guides 100 are elevated and lowered together in one elevation guide and each elevation guide 110 can be provided for each of the plurality of air guides 100. [

When a plurality of air guides 100 are arranged to be able to move up and down in one elevation guide, one elevation guide may have a circular shape as a whole.

On the other hand, when each elevator guide 110 is provided for each of the plurality of air guides 100, the elevator guide 110 may be formed like a curved shape like the air guide 100.

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

Hereinafter, the case where each of the air guides 100 is provided with the respective elevation guides 110 will be described as an example.

&Lt; Detailed configuration of elevation guide &

The elevation guide 110 may include an air guide receiving portion 111 and a light leakage preventing portion 112. The elevating guide 110 may further include an elevating mechanism supporting portion 113.

The air guide housing portion 111, the light-shielding portion 112, and the elevator support portion 113 may be integrally formed.

The air guide accommodating portion 111 can guide the air guide 100 up and down.

The air guide receiving portion 111 may include a receiving groove S3 in which the air guide 100 is lifted and received. The air guide receiving portion 111 may be formed as a long arc between the pair of light leakage preventing portions 112.

The light-shielding portion 112 may have a space in which the light emitting device 108 may be disposed. The light leakage prevention part 112 can surround the periphery of the light emission mechanism 108 so that light emitted from the light emission mechanism 108 is irradiated only in the direction of the air guide 100 and does not leak out in the other direction.

The light leakage preventing portions 112 may be located at both ends of the air guide accommodating portion 111, respectively. The pair of elevation guides 110 adjacent to each other can be disposed in contact with the light leakage preventing portions 112 of the elevation guides 110.

The elevating mechanism support portion 113 may be formed at a position corresponding to the elevating mechanism 120. The elevating mechanism 120 can be supported by the elevating mechanism supporting portion 113.

The elevating mechanism support portion 113 may be provided on the upper side of the air guide accommodating portion 111. The elevating mechanism support portion 113 may be formed to protrude upward from a part of the air guide accommodating portion 111. The elevating mechanism support portion 113 may be higher than the air guide accommodating portion 111.

It is preferable that the elevating mechanism support portion 113 is located at the edge portion of the air guide accommodating portion 111, not the central portion.

For example, the elevator support portions 113 may be spaced apart from each other, and each elevator support portion 113 may be spaced at equal intervals from the light leakage preventing portions 112 located at both ends of the elevation guide 110 Can be spaced apart.

<Lift mechanism>

The elevating mechanism 120 may be installed in at least one of the main flow body 50, the outer cover 70, and the elevation guide 110. The elevating mechanism 120 is preferably provided on the elevating mechanism supporting portion 113 of the elevation guide 110.

The lift mechanism 120 may include a motor 122 and a pinion 124 coupled to the rotation axis of the motor 122 and engaged with the lap 106.

The elevating mechanism 120 can lower the air guide 100 to the side of the outlet 25 as shown in FIG. 26 in the lowering mode. The elevating mechanism 120 can lower the air guide 100 so that the lower end 103 of the air guide 100 is separated from the outlet end 63C in the lowering mode.

The elevating mechanism 120 can elevate the air guide 100 to the side of the outlet 25 as shown in Fig.

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

The elevating mechanism 120 may be provided in plurality such as the air guide 100, and each of the air guides 100 may be independently raised and lowered by the elevating mechanism 120, which are different from each other.

When there are two air guides 100, the number of the elevating mechanism 120 may be at least two. The ceiling type air conditioner can raise and lower the air guide 100 having the arc shape by a plurality of elevator mechanisms 120. In this case, the elevator mechanisms 120 can move the air guide 100 having the arc shape more stably .

<Air flow regulation set>

The present embodiment is characterized in that the outer cover 70, the air guide 100, the elevation guide 110, and at least one elevating mechanism 120 constitute the airflow adjusting sets A, B, C, can do. A plurality of the airflow regulating sets A, B, C, and D may be arranged along a virtual line O of a circular shape.

The ceiling type air conditioner can be arranged with four air guides 100 along a circular virtual circle O as shown in Fig. 21. In this case, the elevator mechanism 120 includes four air guides 100, A second elevator mechanism connected to the second air guide among the four air guides 100 and a third elevator mechanism connected to the third air guide among the four air guides 100, And a fourth elevator mechanism connected to the fourth air guide out of the four air guides 100. [

Each of the first elevator gear through the fourth elevator gear may include a motor 122. The motors 122 of the first elevator gear through the fourth elevator gear may be connected to each other by a control unit (not shown) of the ceiling- Can be independently controlled.

Hereinafter, the operation of the present embodiment will be described.

When the blower 4 is driven, the air in the room can pass through the suction grille 3 and then pass through the upper hollow portion 20 of the discharge panel 2 and can be raised into the indoor unit 1.

&Lt; Air flow inside the indoor unit >

The air that has risen into the interior of the indoor unit 1 can be flowed to the heat exchanger 5 by the blower 4 and can be exchanged with the heat exchanger 5 while passing through the heat exchanger 5. [ The heat-exchanged air with the heat exchanger 5 can exit the indoor unit 1 through the plurality of ventilation passages 7, 8, 9 and 10. In the indoor unit 1, a plurality of discharge air flows can be blown downward.

&Lt; Air flow of discharge panel >

The air that has passed through the plurality of air passages 7, 8, 9 and 10 is dispersed into the inlets 21, 22, 23 and 24 of the discharge panel 2, And can flow into the flow path 26.

More specifically, the air introduced into the inlets 21, 22, 23 and 24 flows into the first connection passage 26A, and a part of the air in the first connection passage 26A flows into the second connection passage 26B.

The air flowing through the first connection passage 26A can be discharged to the first outlet 25A while being guided by the first inner guide surface 65A and the outer guide surface 55 and the second connection passage 26B Can be discharged to the second outlet 25B while being guided by the second inner guide surface 65B and the outer guide surface 55. [

At this time, the air flow discharged to the first outlet 25A is directly discharged through the first connection flow channel 26A because the air introduced from the inlets 21, 22, 23 and 24 is discharged quickly, .

The shape of the first exposed area 67A of the first inner guide surface 65A allows a part of the air discharged to the first outlet 25A to form an air stream in an oblique downward tilting direction, It is possible to form a horizontal airflow by the Coanda effect. When the air guide 100 is lowered, the air discharged to the first outlet 25A can be guided by the inner surface 101 of the air guide 100 to form a vertical airflow.

On the other hand, the air currents discharged to the second outlet 25B are mixed with each other in the second connection flow path 26B so that a part of the air of the pair of first connection flow paths 26A adjacent to each other is discharged and mixed, .

By the shape of the second exposed area 67B of the second inner guide surface 65B, the air discharged to the second outlet 25B can form a horizontal air flow. This makes it possible to prevent the air discharged to the second outlet 25B from flowing back to the through hole 31 of the suction panel 3 despite the slow flow rate and to cause dew on the bottom surface of the suction panel 3 .

<Air flow when air guide ascends>

25, when the elevating mechanism 120 raises the air guide 100, the air guide 100 has a height at which the lower end 103 thereof is in contact with the lower end 54C of the outer guide 54 &Lt; / RTI &gt;

The air guided to the outer guide surface 55 of the outer guide 54 may be guided to the decor cover 90 along the lower end 103 of the air guide 100. [

More specifically, some of the air passing through the connection passage 26 can flow on the outer guide surface 55 of the outer guide 54 by a Coanda effect.

The air that flows along the outer guide surface 55 of the outer guide 54 can travel 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 And can flow to the bottom surface of the décor cover 90.

In this case, the air that has passed through the first outlet 25A is guided along the lower end 103 of the air guide 100 and the bottom surface of the decor cover 90, ) Can be dispersed and spread widely in the room.

<Air flow when air guide descends>

26, when the air guide 100 is lowered, a part including the lower end 103 of the air guide 100 can 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.

The lower surface of the air guide 100 can face the first inner guide surface 65A of the inner guide 64 in the horizontal direction when the air guide 100 is lowered as described above.

More specifically, when the air guide 100 is lowered, the lower surface of the air guide 100 can face the first exposed area 67A of the inner guide 64 in the horizontal direction.

A part of the air that has passed through the first outlet 25 can be changed in flow direction after hitting the inner surface 101 of the air guide 100.

 Air striking the inner surface 101 of the air guide 100 is clogged by the air guide 100 and can not flow in the horizontal direction and flows in the downward direction in the direction in which the inner surface 101 of the air guide 100 guides The direction can be broken.

Particularly, the air flowing along the outer guide surface 55 of the outer guide 54 can be changed to the downward direction after it hits the inner surface 101 of the air guide 100.

The air discharged to the first outlet 25A can be discharged and guided to the air stream close to the vertical while being guided by the air guide 100. In this case, And can be concentratedly discharged in the downward direction around the lower end 63C.

&Lt; Relation between air guide height and airflow >

The ceiling-type air conditioner can form a near-horizontal airflow as the height of the air guide 100 increases, and the airflow closer to vertical can be formed as the height of the air guide 100 becomes lower.

The elevation of the air guide 100 can be adjusted according to the mode of the ceiling type air conditioner.

In the cooling mode, the air guide 100 is raised so that the air discharged from the outlet 25 can form an air stream close to horizontal. For example, in the cooling mode, the air guide 100 can be lowered by a predetermined height even when the air guide 100 is lowered.

The air that has passed through the outlet 25 may be cooler than the room temperature and may be heavier than the room air. Therefore, it is preferable that the air guide 100 is raised so as to form a horizontal air flow so that low-temperature air spreads widely in the room. That is, the ceiling-type air conditioner can elevate the air guide 100 to perform indirect cooling.

On the other hand, in the heating mode, the air guide 100 is lowered so that the air discharged from the outlet 25 can form an air current close to vertical. For example, in the heating mode, the air guide 100 can be raised only by a predetermined height at the time of the rise.

The air that has passed through the outlet 25 may be hotter than the room temperature and lighter than the room air. Therefore, it is preferable that the air guide 100 is lowered to form a vertical air flow so that hot air can be directly discharged downward. That is, the ceiling type air conditioner can perform direct heating by lowering the air guide 100.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, 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 construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

2: Discharge panel 25:
25A: first outlet 25B: second outlet
26: connecting channel 50: main channel body
51: Upper body part 52: Outer body part
53: connection part 55: outer guide face
60: Inner channel body 65: Inner guide face
67: Exposed area 67A: First exposed area
67B: second exposure area 671: first area
672: second area 673: third area
70: outer cover 100: air guide

Claims (15)

An indoor unit having a heat exchanger and a blower installed therein and having a plurality of air passages for discharging air through the heat exchanger; And
And a discharge panel which is disposed below the indoor unit and has a plurality of inlets corresponding to the plurality of ventilation passages and guides the air introduced into the inlet to the outlet between the inner guide surface and the outer guide surface,
Wherein the inner guide surface includes an exposed area exposed to the outside in the horizontal direction,
The exposure region
A first exposure area corresponding to each of the plurality of inlets; And
And a second exposure area corresponding to a pair of adjacent ones of the plurality of inlets,
Wherein the maximum curvature of the second exposed region is larger than the maximum curvature of the first exposed region. The method according to claim 1,
Wherein a slope of the upper end of the second exposed region is closer to a vertical direction than a slope of the upper end of the first exposed region. The method according to claim 1,
Wherein a slope of a lower end of the second exposed region is closer to a horizontal direction than a slope of a lower end of the first exposed region. The method according to claim 1,
And the inclination of the lower end of the second exposed region is horizontal. The method according to claim 1,
Wherein the inclination of the upper end of the second exposed region is vertical. The method according to claim 1,
Wherein the second exposure region comprises:
A first region including an upper end of the second exposed region and having a constant slope;
A second region spaced apart from the first region and including a lower end of the second exposed region, the second region having a constant slope less than the slope of the first region; And
And a third region located between the first region and the second region and having a gradient from the first region toward the second region. The method according to claim 6,
The first region is formed vertically,
And the second region is horizontally formed. The method according to claim 1,
Wherein the second exposure region comprises:
A first region including an upper end of the second exposed region and having a curvature smaller than a curvature of the first exposed region;
A second region spaced apart from the first region and including a lower end of the second exposed region, the second region having a curvature less than a curvature of the first exposed region; And
And a third region located between the first region and the second region and having a curvature larger than a curvature of the first exposed region. The method according to claim 1,
The discharge panel includes:
An upper body portion, an outer body portion which is larger than the upper body portion and has the outer guide surface, and a connecting portion connecting the upper body portion and the outer body portion; And
And an inner flow body disposed at a lower portion of the upper body portion and having the inner guide surface. 10. The method of claim 9,
Wherein the connecting portion is located between a pair of adjacent ones of the plurality of inlets,
And the second exposed region corresponds to the connection portion. 10. The method of claim 9,
At least a portion of the first exposed region overlaps with the inlet in a vertical direction,
Wherein at least a part of the second exposed region overlaps with the connection portion in a vertical direction. The method according to claim 1,
The outlet
A first outlet formed between a lower end of the outer guide surface and a lower end of the first exposed area; And
And a second outlet formed between a lower end of the outer guide surface and a lower end of the second exposed area,
Wherein the first outlet and the second outlet are located alternately along the circumferential direction of the discharge panel. 13. The method of claim 12,
Wherein the area of the first outlet is larger than the area of the second outlet. 13. The method of claim 12,
Further comprising at least one air guide which is vertically movable on the discharge panel and varies the air flow of the air discharged to the outlet,
Wherein one side of the air guide faces the first outlet with respect to a horizontal direction when the air guide descends. 13. The method of claim 12,
Further comprising a plurality of air guides that are vertically movable on the discharge panel and vary the air flow of the air discharged to the outlet,
And a gap between a pair of air guides adjacent to each other among the plurality of air guides when the air guide descends, the air outlet facing the second outlet with respect to the horizontal direction.

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