JP2004077015A - Air conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a heat exchanger and the like inside a casing from being seen from the front via air inlets. <P>SOLUTION: This air conditioning system 1 has panels 4, 16 having respective air inlets 14, 17 and mounted respectively on the front and upper faces of a casing 3 inside which a heat exchanger 20, a fan 27 and the like are provided. An air outlet 18 is provided in the lower face of the casing 3. The front panel 4 of the casing 3 has an inner wall section 9 where part of the front face of the casing 3 is open, and an outer wall section 12 which covers the opening 6 formed by the inner wall section 9 and which forms inlets 14, 14 in communication with the opening 6 between the outer wall section and the inner wall section 9, with the ends of the outer wall section overlapping the ends of the inner wall section 9 with a predetermined gap therebetween in the thickness direction of the panel 4. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air conditioner, and more particularly to an air conditioner in which a panel on a front surface of a casing is formed in a flat shape.
[0002]
[Prior art]
As an example of the air conditioner, as shown in FIG. 5, a heat exchanger 40, a blower 45, and the like are provided inside a casing 37 of the indoor unit 36, and a plurality of panels are provided on a front panel 38 and a top panel 46 of the casing 37. It is generally known to provide grille-like air inlets 39 and 47 formed of slits and air outlets 48 on the lower surface side of the casing 37.
[0003]
In the air conditioner 35 having such a configuration, the blower 45 is operated to suck the room air into the casing 37 from the suction ports 39 and 47, exchange heat with the heat exchanger 40, and change the room air from the blowout port 48. By blowing air to the room, the room can be cooled, heated or dehumidified.
[0004]
[Problems to be solved by the invention]
By the way, in the air conditioner 35 configured as described above, the suction port 39 of the panel 38 on the front side of the casing 37 is formed in a grill shape including a plurality of slits, and furthermore, the inside is made invisible from the front. For this reason, since the interval between the slits is formed to be narrow, cleaning is extremely troublesome.
[0005]
On the other hand, in order to solve the above problem, as shown in FIG. 6, an air conditioner 51 in which a part of a panel 38 on the front side of a casing 37 is formed in a flat shape has been proposed. In the air conditioner 51 having such a configuration, the ratio of the grill-shaped suction port 39 including the plurality of slits is small, and therefore, the cleaning is easier than that shown in FIG.
[0006]
However, since the ratio of the grill-shaped suction port 39 is reduced, the suction port 49 having a large effective area must be provided between the flat-shaped portion and the grill-shaped portion. For this reason, depending on the positional relationship between the suction port 49 and the user's viewpoint, there is a disadvantage that an internal structure such as a filter is visible. In particular, when the product is displayed at a store or the like, depending on the height of the display, the internal heat exchanger 40 and the like can be seen from the suction port 49, and the commercial value may be significantly reduced.
[0007]
The present invention has been made in view of the above-described conventional problems, and provides an apparatus that makes it difficult to see the internal structure from the outside while securing the intake air flow rate. However, an object of the present invention is to provide an air conditioner that can provide the original commercial value without the interior being visible from the suction port depending on the display height.
[0008]
[Means for Solving the Problems]
The present invention employs the following means in order to solve the above problems. That is, the invention according to claim 1 is characterized in that a panel having an air inlet is mounted on a front side and an upper side of a casing in which a heat exchanger, a blower and the like are provided, and an air outlet is provided on a lower side of the casing. Wherein the panel on the front side of the casing has an inner wall portion that opens a part of the front side of the casing, and an outer wall portion that covers an opening formed by the inner wall portion. The end of the outer wall portion overlaps with the end of the inner wall portion at a predetermined interval in the thickness direction of the panel, and forms a suction port communicating with the opening between the inner wall portion and the inner wall portion. It is characterized by.
According to the air conditioner of the present invention, the end of the inner wall portion and the end of the outer wall portion of the panel on the front side of the casing overlap at a predetermined interval in the thickness direction of the panel, and the casing overlaps the overlapping portion. A suction port is formed which communicates with an opening on the front surface side of the casing, and air is sucked into the casing via the suction port.
In this case, since the end portion of the inner wall portion and the end portion of the outer wall portion overlap, the inside of the casing is not seen from the front side through the suction port.
[0009]
The invention according to claim 2 is the air conditioner according to claim 1, wherein an end of the inner wall portion is configured to go around a back side of the outer wall portion, or an end of the outer wall portion. The portion is configured to go around the back side of the inner wall portion.
According to the air-conditioning apparatus of the present invention, the end of the inner wall portion goes around the back side of the outer end portion, or the end portion of the outer wall portion goes around the back side of the inner wall portion, so that the inner side wall comes from the front side. The inlet formed between the portion and the outer wall is not visible, and the inside of the casing is not visible through the inlet.
[0010]
The invention according to claim 3 is the air-conditioning apparatus according to claim 1 or 2, wherein the suction port is formed in a shape in which a flow path cross-sectional area increases gradually from an inlet to an inward direction. It is characterized by having.
ADVANTAGE OF THE INVENTION According to the air conditioner by this invention, pressure loss does not generate | occur | produce in the air sucked into a casing from a suction port.
[0011]
The invention according to Claim 4 is the air conditioner according to any one of Claims 1 to 3, wherein the inner wall portion and the outer wall portion constituting the suction port are imaginary inscribed circles inscribed therebetween. Is characterized in that it is formed in a curved shape in which the diameter gradually increases inward from the inlet portion of the suction port.
ADVANTAGE OF THE INVENTION According to the air conditioner by this invention, pressure loss does not generate | occur | produce in the air sucked into a casing from a suction port.
[0012]
The invention according to claim 5 is the air conditioner according to any one of claims 1 to 3, wherein the inner wall and the outer wall that constitute the suction port are integrally formed. , A plurality of ribs connected to the first and second ribs are provided.
ADVANTAGE OF THE INVENTION According to the air conditioner by this invention, the flow path cross-sectional area of the inlet formed between an inner side wall part and an outer side wall part can be maintained at a predetermined value.
[0013]
The invention according to claim 6 is an air conditioner having a panel provided with a suction port for introducing room air for heat exchange in a heat exchanger provided therein, wherein the panel has a first wall portion and a second wall portion. An air flow path that communicates with the panel front side and the back side through the suction port includes an inner wall surface at an end of the first wall portion and an end portion of the first wall portion. And an outer wall surface at the end of the second wall portion extending along the inner wall surface.
According to this invention, the air flow path communicating with the panel front side and the back side extends along the inner wall surface at the end of the first wall and the inner wall at the end of the first wall. Since the air conditioner is formed by the outer wall surface at the end of the second wall portion provided, the area in which the inside of the air conditioner can be seen when the air conditioner is installed on the wall can be reduced.
[0014]
The invention according to claim 7 is the air conditioner according to claim 5, wherein the second wall portion is constituted by a pair of flow path forming wall portions provided along a longitudinal direction of the panel. The air flow paths formed by the flow path forming walls communicate with each other through different suction ports.
According to the present invention, the air flow paths formed by the pair of flow path forming walls communicate with each other through the different suction ports, so that the angles at which the inside can be seen are dispersed, and when viewed from one specific direction. In such a case, the opening area through which the inside can be viewed can be reduced.
[0015]
The invention according to claim 8 is the air conditioner according to claim 6 or claim 7, wherein the panel has a second suction port that connects a side surface and a back surface of the panel to each other. The second suction port is provided on a side surface of the panel along the longitudinal direction of the panel.
According to the present invention, the panel has the second suction port for communicating the side face and the back face of the panel, and the second suction port is provided on the side face of the panel along the longitudinal direction of the panel. Therefore, it is possible to realize a structure that makes the internal structure difficult to see, improve the total suction amount, and as a result, improve the operation efficiency.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of an air conditioner according to the present invention will be described with reference to FIGS.
As shown in FIGS. 1 to 3, the air conditioner 1 according to the present invention includes an indoor unit 2 and an outdoor unit (not shown), and both units are connected via a refrigerant pipe (not shown). Connected to each other.
[0017]
The air conditioner 1 according to the present invention includes a panel 4 having a suction port 14 for introducing room air for heat exchange in a heat exchanger 20 provided therein. And a second wall 9. Here, the air flow path communicating with the front surface side and the back surface side of the panel 4 via the suction port 14 is formed between the inner wall surface of the end 11 a of the first wall 12 and the end 11 a of the first wall 12. It is formed by the outer wall surface of the end 7a of the second wall portion 9 extending along the inner wall surface.
[0018]
In addition, the second wall portion 9 is separated from each other in a pair in the width direction of the panel 4 in the vertical direction, and is provided along the longitudinal direction of the panel 4. And the lower inner wall 8, and the air flow paths formed by the upper inner wall 7 and the lower inner wall 8 communicate with each other through different suction ports 14, 14. .
[0019]
Further, the panel 4 has a second suction port 22 for communicating the side surface side and the back surface side of the panel 4 with each other, and the second suction port 22 is provided on the side surface side of the panel 4 along the longitudinal direction of the panel 4. May be provided.
[0020]
Hereinafter, the air conditioner 1 described above will be described more specifically.
As shown in FIG. 1, the indoor unit 2 has a configuration in which a heat exchanger 20, a blower 27, and the like are provided in a casing 3 formed in a box shape that is horizontally long in a direction along a vertical direction in the figure. . The casing 3 includes a panel 4 and a panel 16 on the front side and the upper side, respectively, based on the indoor unit 2 installed indoors. Specifically, the panel 4 and the panel 16 adopt a configuration that can be detachably attached to the casing 3. Each of the panels 4 and 16 has an air suction port 14 and 17 serving as a suction air flow path penetrating inside and outside the casing 3.
[0021]
In addition, the casing 3 has an air outlet 18 serving as an outlet air flow path penetrating the inside and outside of the casing 3 on the lower front side. A flap 19 is rotatably provided at the air outlet 18, and the amount and direction of air blown from the air outlet 18 are adjusted by the flap 19.
[0022]
As shown in FIG. 3, the panel 4 mounted on the front side of the casing 3 includes a rectangular plate-shaped substrate 5, a pair of upper outer wall portions 11 arranged in symmetrical positions, and an upper central outer wall portion. And a center panel 21 as a member. Here, the substrate 5 has a rectangular opening 6 at the center. At the edge of the opening 6 along the longitudinal direction of the panel 4, that is, at both edges in the width direction of the opening 6, an upper inner wall 7 and a lower inner wall 8 as flow path forming walls are provided. Is provided. The upper inner wall portion 7 and the lower inner wall portion 8 are integrally formed at both edges in the width direction of the opening 6, extend from both edges toward the center of the opening 6, and It is formed in a shape that is concave in a curved shape in the direction. In addition, a rectangular plate-shaped lower outer wall portion 10 covering the central portion of the opening 6 over the entire length is provided at both ends in the longitudinal direction of the opening 6 of the substrate 5. However, the lower outer wall portion 10 is preferably formed integrally with the substrate 5. Further, the upper outer wall portion 11 is provided above the lower outer wall portion 10 in the drawing (see FIG. 3), but is formed more largely than the lower outer wall portion 10. As a result, as shown in FIG. 2, both ends in the width direction are overlapped with the ends of the upper inner wall 7 and the lower inner wall 8 at a predetermined interval in the thickness direction of the panel 4. .
[0023]
In the present embodiment, the inner wall 9 is formed by the upper inner wall 7 and the lower inner wall 8, and the outer wall 12 is formed by the upper outer wall 11 and the lower outer wall 10. The above-described predetermined interval in the thickness direction of the panel 4 is formed by integrally providing a plurality of ribs 13 at predetermined intervals between the lower outer wall portion 10 and the inner wall portions 7 and 8. You.
[0024]
As described above, in the present embodiment, the edge is formed on the substrate 5 constituting the panel 4 by the inner wall 9 serving as the second wall extending in the direction recessed with respect to the surface of the panel 4. An opening 6 serving as an internal opening is formed, and an outer wall 12 serving as a first wall functioning as a blind that blocks the opening 6 from directly opening to the outside is formed as an opening 6. So that the opening direction of the air flow passage leading to the internal opening is in the direction along the wall surface of the inner wall portion 9. Thereby, the opening 6 is formed at the overlapping portion between the end portion of the outer wall portion 12 and the end portion of the upper inner wall portion 7 and the overlapping portion between the end portion of the outer wall portion 12 and the end portion of the lower inner wall portion 8. Are provided, each of which is provided with a suction port 14 that communicates with the suction port 14.
[0025]
That is, the end of the upper inner wall portion 7 and the end of the lower inner wall portion 8 constituting the suction port 14 of the panel 4 respectively wrap around the back side of the outer wall portion 12, and move the front panel 4 to the front side. When viewed from above, the suction ports 14, 14 are invisible from the front side.
[0026]
As shown in FIG. 2, the upper inner wall portion 7 and the outer wall portion 12 constituting the suction port 14 are shaped such that the flow path cross-sectional area increases sequentially from the inlet portion of the suction port 14 toward the inside, that is, The imaginary inscribed circle 15 inscribed between the upper inner wall portion 7 and the outer wall portion 12 inwardly from the inlet portion is formed in a curved shape in which the diameter gradually increases. Thus, it is possible to prevent a pressure loss from occurring in the air sucked from the suction port 14.
[0027]
Similarly, the lower inner wall portion 8 and the outer wall portion 12 constituting the suction port 14 have a shape in which the flow path cross-sectional area increases gradually from the inlet portion of the suction port 14 toward the inside, that is, from the inlet portion to the inner side. The imaginary inscribed circle inscribed between the lower inner side wall portion 8 and the outer side wall portion 12 is formed in a curved shape in which the diameter gradually increases, and a pressure loss is prevented from occurring in the air sucked from the suction port 14. (See FIG. 2).
[0028]
Furthermore, between the upper inner wall portion 7 and the outer wall portion 12 and between the lower inner wall portion 8 and the outer wall portion 12 are integrally connected at predetermined intervals over the entire width. A rib 13 is provided, and the cross-sectional area of the passage of the suction port 14 is maintained at a predetermined value by the rib 13.
[0029]
In addition, in this embodiment, in order to improve or compensate for the suction amount through the suction port 14, in this embodiment, as shown in FIG. An opening is provided as a second suction port 22 opened in the direction. Specifically, it is configured to be elongated in the direction along the vertical direction in the figure, and is arranged side by side with the suction port 14 arranged in the direction along the panel longitudinal direction, thereby maintaining a sense of unity. The function of ensuring the suction flow rate is compatible.
[0030]
The heat exchanger 20 includes an upper heat exchanger 23 provided on the upper front side in the casing 3, a rear heat exchanger 24 provided on the upper rear side in the casing 3, and an upper heat exchanger 23 in the casing 3. It comprises a lower heat exchanger 25 provided below, and these three heat exchangers 23, 24, 25 are interconnected via pipes (not shown).
[0031]
A central portion in the casing 3, that is, a space surrounded by the upper heat exchanger 23, the rear heat exchanger 24, and the lower heat exchanger 25 communicates with the outlet 18 through the outlet 26, and the outlet 26 A blower 27 is provided at the upper end opening of the fan.
[0032]
The indoor blower 27 is composed of a cross flow fan 28 rotatably provided at an upper end opening of the outlet passage 26 and a fan motor (not shown) provided at a lateral end of the casing 3. By operating the fan motor to rotationally drive the cross flow fan 28, the air flow path formed by the outer wall portion 12 and the inner wall portion 9, from the suction port 14 of the casing 3, from the suction port 22, or The air in the room can be sucked into the casing 3 from the suction port 17 and blown out of the casing 3 from the outlet 18.
[0033]
Then, when the operation of the air-conditioning apparatus 1 according to this embodiment configured as described above is started, the fan motor of the blower 27 operates to rotate the cross flow fan 28, and the suction port 14 of the panel 4 on the front side. , 14 and the suction port 17 of the panel 16 on the upper surface side, the indoor air is sucked into the casing 3, the heat is exchanged by the heat exchanger 20, and is blown out of the casing 3 through the outlet port 26 through the outlet 18, The room is cooled, heated and dehumidified.
[0034]
In the air conditioner 1 according to this embodiment configured as described above, the inlets 14 of the front panel 4 are located between the upper inner wall 7 and the outer wall 12 and the lower inner. It is formed between the wall portion 8 and the outer wall portion 12. In this case, since the ends of the inner wall portions 7, 8 extend around the back side of the outer wall portion 12, suction is performed from the front side of the panel 4. The mouths 14, 14 are not visible. Therefore, since the heat exchanger 20 and the like in the casing 3 are not visible through the suction ports 14 and 14, when the heat exchanger 20 and the like are displayed at a store or the like, the height of the display indicates that the heat exchanger 20 and the like inside the casing 3 are not inside the casing 3. The heat exchanger 20 and the like are not seen, and the original commercial value can be provided.
[0035]
The inner wall portions 7 and 8 and the outer wall portion 12 constituting the suction ports 14 and 14 have a shape in which the cross-sectional area of the flow path increases inward from the inlet portions of the suction ports 14 and 14, that is, Since the imaginary inscribed circle 15 inscribed between the inner wall portions 7 and 8 and the outer wall portion 12 inward from the inlet portion is formed in a curved shape in which the diameter gradually increases, the suction port is formed. Pressure loss does not occur in the air sucked from the air intake 14 and the air can be efficiently guided to the heat exchanger 20 through the air inlets 14 and 14. In this case, a plurality of ribs 13 are integrally provided between the inner wall portions 7 and 8 and the outer wall portion 12, so that a predetermined flow path cross-sectional area can be secured, and a predetermined flow rate can be secured. The air can be reliably guided to the heat exchanger 20 side.
[0036]
In addition, the air flow path communicating with the front surface side and the rear surface side of the panel 4 extends along the inner wall surface at the end of the first wall 12 and the inner wall at the end 11a of the first wall 12. And the outer wall surfaces of the end portions 7a and 8a of the second wall portion 9, the wall portions 9 and 12 forming the air flow path are formed at the ends of the respective wall portions as viewed from the panel 4 surface side. Regions where the portions 7a, 8a, 11a overlap each other can be formed. As a result, when the inside is viewed from the front side, the end opening B is formed so as to form an acute angle inside the vertical direction of the inner wall surface of the first wall portion 12, so that the end portions are connected. It is necessary to enter a region closer to the surface of the panel 4 than the virtual line C. As a result, when the air-conditioning apparatus 1 is installed so as to be hung on a wall, a region where the inside can be seen can be reduced.
[0037]
Furthermore, the air flow paths formed by the inner side wall portions 7 and 8 serving as a pair of flow path forming wall portions communicate with each other through the suction ports 14 and 14 opened at different locations, so that the angle at which the inside can be seen can be increased. In addition to being dispersed, the opening area that allows the inside to be seen when viewed from one specific direction can be reduced.
[0038]
In addition, by having an opening 22 serving as a second suction port for connecting the side surface side and the back surface side of the panel 4 to each other, the second suction port 22 is formed so that the side surface of the panel 4 extends along the longitudinal direction of the panel 4. Since it is provided on the side, it is possible to realize a structure that makes the internal structure difficult to see, improve the total suction amount, and as a result, improve the operation efficiency.
[0039]
In the above-described embodiment, the end of the upper inner wall 7 and the end of the lower inner wall 8 are wrapped around the rear surface of the outer wall 12, but as a modified example, as shown in FIG. Alternatively, the end of the wall 32 may be wrapped around the back side of the upper wall 30 and the lower wall 31, and in this case, the same operation and effect can be obtained. In the present modification, the first wall described above becomes the walls 30 and 31 forming the opening 33, and the second wall becomes the wall 32 covering the opening 33.
[0040]
In the above-described embodiment, two suction ports 14 and 14 are provided in the front panel 4, but one or three or more suction ports (not shown) may be provided. In that case, the same operation and effect can be obtained.
[0041]
【The invention's effect】
As described above, according to the air conditioner according to claim 1 of the present invention, the end of the inner wall and the end of the outer wall of the panel on the front side of the casing are in the thickness direction of the panel. Since the suction port communicating with the opening on the front side of the casing is formed in the polymerized portion at a predetermined interval, the suction port is not visible from the front side of the front panel. The heat exchanger and the like inside the casing are not seen through the suction port. Therefore, when the product is displayed at a store or the like, the heat exchanger and the like inside the casing are not seen from the suction port and the commercial value is not reduced, and the original commercial value can be provided.
[0042]
According to the air conditioner of the second aspect, the end of the inner wall portion goes around the back side of the outer end portion, or the end portion of the outer wall portion goes around the back side of the inner wall portion. Therefore, the suction port formed between the inner wall portion and the outer wall portion is not seen from the front side of the front panel, and the inside of the casing is not seen through the suction port. Therefore, when the product is displayed at a store or the like, the heat exchanger or the like in the casing is not seen from the suction port to lower the commercial value, and the original commercial value can be provided.
[0043]
Furthermore, according to the air conditioner of the third aspect, since the suction port is formed in such a shape that the cross-sectional area of the flow passage increases gradually inward from the inlet portion, the suction port is provided inside the casing. No pressure loss occurs in the air sucked into the casing, a predetermined amount of air can be efficiently supplied to the heat exchanger side in the casing, and the room can be efficiently cooled, heated, or dehumidified. is there.
[0044]
Furthermore, according to the air conditioner of the fourth aspect, the diameter of the virtual inscribed circle inscribed between the inner wall portion and the outer wall portion forming the suction port is inward from the inlet portion of the suction port. , So that a pressure loss does not occur in the air drawn into the casing from the suction port, and a predetermined amount of air is efficiently transferred to the heat exchanger side in the casing. It can supply and efficiently cool, heat, or dehumidify the room.
[0045]
Furthermore, according to the air conditioner of the fifth aspect, since the inner wall and the outer wall constituting the suction port are integrally connected by the plurality of ribs, the flow passage cross-sectional area of the suction port is provided. Can be maintained at a predetermined value. Therefore, a predetermined flow of air can always be supplied to the heat exchanger side in the casing, and the room can be efficiently cooled, heated, or dehumidified.
[0046]
Further, according to the invention according to claim 6, the air flow path communicating with the front surface side and the back surface side of the panel has an inner wall surface at an end of the first wall and an air flow path at an end of the first wall. Since it is formed by the outer wall surface at the end of the second wall portion extending along the inner wall surface, the area where the inside can be seen when the air conditioner is installed to be hung on the wall is reduced. be able to.
[0047]
Furthermore, according to the invention according to claim 7, since the air flow path formed by the pair of flow path forming wall portions communicates through different suction ports, the angle at which the inside can be seen is dispersed, When viewed from one specific direction, the opening area through which the inside can be seen can be reduced.
[0048]
Furthermore, according to the invention according to claim 8, the panel has a second suction port for communicating the side surface side and the back surface side of the panel, and the second suction port is provided along the longitudinal direction of the panel. Since it is provided on the side surface of the panel, it is possible to realize a structure that makes the internal structure difficult to see, and to improve the total suction amount, and as a result, to improve the operation efficiency.
[Brief description of the drawings]
FIG. 1 is a schematic vertical sectional view showing an embodiment of an air conditioner according to the present invention.
FIG. 2 is a partially enlarged view of an area A in FIG.
FIG. 3 is an exploded view of the front panel of FIG.
FIG. 4 is a schematic diagram showing a modification of the air conditioner according to the present invention.
FIG. 5 is a schematic longitudinal sectional view showing an example of a conventional air conditioner.
FIG. 6 is a schematic longitudinal sectional view showing one proposal for the air conditioner shown in FIG.
[Explanation of symbols]
Reference Signs List 1 air conditioner 3 casing 4, 16 panel 6 opening 9 inner wall (second wall)
12. Outer side wall (first wall)
13 Ribs 14, 17 Suction port 15 Virtual inscribed circle 18 Air outlet 20 Heat exchanger 27 Blower

Claims (8)

A heat exchanger, an air conditioner in which a panel having an air suction port is mounted on a front side and an upper side of a casing in which a blower and the like are provided, respectively, and an air outlet is provided on a lower side of the casing, The panel on the front side of the casing includes an inner wall portion that opens a part of the front side of the casing, and an outer wall portion that covers an opening formed by the inner wall portion, and an end of the outer wall portion is provided. An air conditioner, wherein an end of the inner wall portion overlaps with a predetermined interval in a thickness direction of the panel, and a suction port communicating with the opening portion is formed between the inner wall portion and the inner wall portion. 2. The air conditioner according to claim 1, wherein an end of the inner wall is configured to wrap around a back side of the outer wall, or an end of the outer wall is formed of the inner wall. 3. An air conditioner characterized by being configured to go around the back side. 3. The air conditioner according to claim 1, wherein the suction port is formed in such a shape that a cross-sectional area of the flow path increases in order from the inlet to the inside. 4. apparatus. The air conditioner according to any one of claims 1 to 3, wherein the inner wall portion and the outer wall portion constituting the suction port have a diameter of a virtual inscribed circle inscribed therebetween. An air conditioner characterized by being formed in a curved shape that gradually increases inward from an inlet portion of the air conditioner. The air conditioner according to any one of claims 1 to 3, wherein a plurality of ribs are provided between the inner side wall and the outer side wall constituting the suction port to integrally connect the two. An air conditioner characterized by the above-mentioned. An air conditioner having a panel having a suction port for introducing room air for heat exchange in a heat exchanger provided therein, wherein the panel includes a first wall portion and a second wall portion, An air flow path that communicates with the panel front side and the back side through a mouth extends along an inner wall surface at an end of the first wall and an inner wall at an end of the first wall. An air conditioner characterized by being formed by an outer wall surface at an end of the second wall portion. The air conditioner according to claim 5, wherein the second wall portion includes a pair of flow path forming wall portions provided along a longitudinal direction of the panel, and each of the second wall portions has a respective flow path. An air conditioner characterized in that the air flow path formed by the molding wall portion communicates through different suction ports. The air conditioner according to claim 6, wherein the panel has a second suction port that allows a side surface and a back surface of the panel to communicate with each other, and the second suction port includes the panel. The air conditioner is provided on a side surface of the panel along the longitudinal direction of the panel.

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