JP3218276B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a heat exchanger formed in an inverted V-shape, and more particularly to an improvement in a structure for treating drain water dropped from the heat exchanger.

[0002]

2. Description of the Related Art An air conditioner generally used includes an indoor unit installed in a room to be air-conditioned and an outdoor unit installed in an outdoor part of a building, and these units are connected to each other via a refrigerant pipe, electric wiring, or the like. ing.

[0003] In the unit main body of the indoor unit, air to be conditioned is sucked into the unit main body from a suction port provided in a front panel, passes through a heat exchanger disposed therein and exchanges heat. The air is blown out to the room to be air-conditioned again from the air outlet provided in the lower part.

[0004] In an air conditioner, the heat exchanger has a reverse V
There is a type configured to be arranged in a letter shape. The main part of such a unit main body 1 is configured, for example, as shown in FIG.

That is, reference numeral 3 in FIG. 7 denotes a rear plate which constitutes a unit main body together with a front panel (not shown).
An inverted V-shaped heat exchanger 5 shown by a two-dot chain line in FIG. 7 is arranged on the front surface of the rear plate 3. The heat exchanger 5 includes a front heat exchanger 5a located at the front and a rear heat exchanger 5 located at the rear.
b.

The front heat exchanger 5 constituting the heat exchanger 5
The lower end of the rear heat exchanger 5b is located at a lower position, and the lower end of the rear heat exchanger 5b is located at a higher position, and the lower drain pan 6b is located at the lower end. The front and rear drain pans 6a and 6b are provided integrally with the rear plate 3. Front drain pan 6a
Is provided along the width direction of the unit main body 1 at the front end of the air passage 17, and the rear drain pan 6 b is provided along the width direction of the unit main body 1 at the upper side of the air passage 17. I have.

The front heat exchanger 5a and the rear heat exchanger 5
b, an indoor blower 11 is disposed so as to be covered by the heat exchangers 5a and 5b. The indoor blower 11 includes a rotating fan 12, a fan motor 13 for driving the transverse fan 12 to rotate, a bearing member 14, and the like.

[0008] Both ends of the indoor blower 11 are supported by blower support portions 15 and 16, and a blow path 17 is formed between the blower support portions 15 and 16.
Gutter portions 20a and 20a are provided on both sides of the air passage 17 respectively.
b is formed.

The left and right gutter portions 20a and 20b have upper ends communicating with both side ends of the rear drain pan 6b, and lower ends communicating with both side ends of the front drain pan 6a. That is, the right and left gutter sections 20a and 20b are connected to the rear drain pan 6
b and a front side drain pan 6a.

The air conditioner thus configured is
By performing a refrigeration cycle operation for the heat exchanger 5 and driving the indoor blower 11 to rotate the cross flow fan 12, the air to be conditioned is blown from the inlet into the unit body 1.
And is passed through the heat exchanger 5 to perform heat exchange. The heat exchange air after the heat exchange is guided to the air passage 17 and is blown out from the outlet into the room to be air-conditioned.

In the case of the cooling operation, dew forms on the heat exchanger 5, and drain water is generated and dropped into the drain pan 6. That is, the drain water dropped from the front heat exchanger 5a is received by the front drain pan 6a, and the drain water dropped from the rear heat exchanger 5b is received by the rear drain pan 6b.

The rear drain pan 6b is connected to the front drain pan 6a.
The drain water collected in the rear drain pan 6b is located at a higher position than the left and right gutters 2 formed at both ends.
0a and 20b, and water is collected in the front drain pan 6a. Then, the wastewater is collectively drained from the front drain pan 6a to the outside of the room.

Here, the structure of the left and right gutter sections 20a and 20b will be described. Since the left and right gutter portions 20a and 20b are formed symmetrically, only the gutter portion 20a will be described. Note that w in FIG. 8 indicates drain water. That is, as shown in FIG. 8, the gutter portion 20 a includes a first wall portion 21 located outside the unit body 1 in the width direction, and the first wall portion 2.
A second unit located closer to the air passage 17 of the unit body 1 than the first unit 1;
It was composed of a wall portion 22 and a plate-like member 23 connecting these, so that the drain water w could flow.

[0014]

The unit body 1 of the above-mentioned conventional air conditioner has the following problems. That is, since the cold drain water w flows from the rear drain pan 6b to the front drain pan 6a via the right and left gutter portions 20a and 20b, the wall surface 2 of the second wall portion 22 on the side of the air passage 17 is formed.
Condensation on 2a. Moisture generated by the condensation is discharged from the outlet into the room to be air-conditioned by the wind flowing through the air passage 17.

On the other hand, a method of attaching a heat insulating material to prevent dew condensation on the wall surface 22a of the second wall portion 22 on the side of the airflow path 17 is also conceivable. However, if the heat insulating material comes off due to the deterioration of the adhesive material over time, the heat insulating material may be
There is a possibility that abnormal noise may be generated due to contact with the touch panel 2.

Accordingly, an object of the present invention is to provide an air conditioner that prevents the occurrence of dew condensation and does not discharge drain water into a room to be air-conditioned without attaching a heat insulating material to an air passage side of a gutter portion. And

[0017]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object, an invention according to claim 1 is directed to a unit body having a suction port and a discharge port extending in a width direction, and a unit having the same. A heat exchanger that is disposed in the main body and includes a front heat exchanger located in the front and a rear heat exchanger located in the back, and sucks air to be conditioned from the suction port into the heat exchanger. Blowers that are circulated and blown from the outlet through a blow path after heat exchange here, and a front drain pan and a rear drain pan that are arranged below the front heat exchanger and the rear heat exchanger, respectively. The drain water positioned at the widthwise end of the unit main body of the blower passage and extending between the front drain pan and the rear drain pan and collecting the drain water collected in the rear drain pan. And a trough portion that flows guided to Npan, the trough has a first wall portion positioned outward in the width direction of the unit body, located inward in the width direction of the unit main body than the first wall portion A first wall provided between the first wall and the second wall;
Forming a flow path for flowing the drain water between the wall and ,
And a third wall portion having a gap formed between the second wall portion and the third wall portion.

According to the second aspect of the present invention, there is provided the first aspect.
In the invention described in (1), it is preferable that the gutter portion is formed to have a substantially E-shaped cross section whose upper surface is open . In the invention described in claim 3, in the invention described in claim 2, it is preferable that an upper edge of the third wall portion is formed lower than an upper edge of the second wall portion.

According to the invention described in claim 4, in claim 2,
In the invention described in the above, the third wall portion is provided on the front drain pan side, and a space formed by the second wall portion and the third wall portion is closed on the rear drain pan side. Is preferred.

According to the invention described in claim 5, claim 1 is provided.
In the invention described in (1), it is preferable that the gutter portion is formed to have a substantially S-shaped cross section by joining an upper edge of the second wall portion and an upper edge of the third wall portion.

According to the invention described in claim 6, in claim 5
In the invention described in (1), it is preferable that a heat insulating material is provided between the second wall portion and the third wall portion.
As a result of taking the above-described means, the following operation occurs.

According to the first aspect of the present invention, the drain located at the widthwise end of the unit body of the air passage, extending between the front drain pan and the rear drain pan, and collecting water in the rear drain pan. A gutter for guiding water to the front drain pan is located outside the unit body in the width direction.
A drain is provided between the wall, a second wall positioned more inward of the unit body in the width direction than the first wall, and a first wall provided between the first wall and the second wall. Since the third wall portion having the flow path through which water flows is provided, the portion through which the low-temperature drain water flows and the third wall portion are separated from each other, and the third wall portion is cooled. There is no. Therefore, dew condensation on the side wall surface of the outlet of the third wall portion can be prevented.

According to the second aspect of the invention, since the gutter portion is formed to have a substantially E-shaped cross section, the first wall portion, the second wall portion, and the third wall portion are connected by a single plate. It can be formed with high strength. In addition, even if drain water overflows in the flow path, the drain water flows between the second wall portion and the third wall portion, so that it is possible to prevent the drain water from being sucked into the air passage.

According to the third aspect of the present invention, the upper edge of the third wall is formed lower than the upper edge of the second wall.
Even if the drain water overflows in the flow path, the water surface is blocked by the second wall portion from the wind flowing through the ventilation path,
Drain water can be prevented from being sucked into the ventilation path.

In the invention described in claim 4, the third wall is provided on the front drain pan side, and the space formed by the second wall and the third wall is closed on the rear drain pan side. Therefore, the drain water flowing from the rear drain pan flows only into the flow path before reaching the front drain pan even if the flow velocity becomes slow, and it is possible to prevent dew condensation on the third wall.

According to the fifth aspect of the present invention, since the upper edge of the second wall and the upper edge of the third wall are joined to form a substantially S-shaped cross section, the gutter has a simple structure. A part can be formed.

In the invention described in claim 6, since the heat insulating material is provided between the second wall portion and the third wall portion, the heat insulating effect is further improved, and dew condensation is effectively prevented. be able to.

[0028]

FIG. 1 is a perspective view showing a unit body 1 which is an indoor unit of an air conditioner according to an embodiment of the present invention. FIG. 2 is a front view showing a main part of the unit body 1. 3 is an exploded perspective view showing a main part of the unit body 1, and FIG. 4 is a sectional view of a gutter portion 30a. In these drawings, the same functional portions as those in FIGS. 7 and 8 are denoted by the same reference numerals. In the drawing, w indicates drain water.

The unit main body 1 has a front panel 2 and a rear plate 3 into which the front panel 2 is fitted. The front side and the upper side of the front panel 2 have suction ports 2a along the width direction of the unit main body 1. , 2b, the unit body 1 on the lower side
The outlet 2c is attached along the width direction.

In the unit body 1, as shown in FIG. 2, an air filter 4 which is bent in a gentle arc so as to face each suction port 2a, 2b, and is formed in an inverted V-shape. A heat exchanger 5 is arranged. In addition, heat exchanger 5
A front heat exchanger 5a facing the front suction port 2a,
And a rear heat exchanger 5b opposed to the upper suction port 2b.

The front heat exchanger 5 constituting the heat exchanger 5
The lower end of the rear heat exchanger 5b is located at a lower position, and the lower end of the rear heat exchanger 5b is located at a higher position, and the lower drain pan 6b is located at the lower end. The front and rear drain pans 6a and 6b are provided integrally with the rear plate 3.

The heat exchanger 5 is formed in an inverted V-shape, which is located inside the heat exchanger 5, that is, between the front heat exchanger 5 a and the rear heat exchanger 5 b so as to be covered by these heat exchangers. The indoor blower 11 is arranged.

As shown in FIG. 3, the indoor blower 11 has a transverse flow fan 1 having the same axial dimension as the width of the heat exchanger 5.
2, a fan motor 13 connected to an end plate 12b on one side of the cross flow fan 12 via a rotating shaft 13a and a support shaft 12a protruding from an end plate 12c on the other side of the cross flow fan 12. And a bearing 14 for pivotal support.

On the other hand, on one side (right side) in the width direction of the rear plate 3, a first blower support 15 is integrally formed,
On the other side (left side), a second blower support 16 is integrally formed. An air passage 17 is formed between the blower support portions 15 and 16.

Each side of the air passage 17 is formed with a recess having a narrow width, and a gutter portion 30 is formed in the recess.
a, a gutter portion 30b is formed. An outlet 2c is opened along the front end of the air passage 17. The front drain pan 6a is provided along the front end of the outlet 2c, and the rear drain pan 6b is
7 will be provided along the upper side.

The upper ends of the left and right gutter portions 30a and 30b communicate with both side ends of the rear drain pan 6b, and the lower ends communicate with both side ends of the front drain pan 6a. That is, the left and right gutter portions 30a and 30b form a communication path that connects the rear drain pan 6b and the front drain pan 6a.

The first blower supporting portion 15 serves to hold the fan motor 13 constituting the indoor blower 11
The fan motor 13 is mounted on the rear plate 3 and fixed.

A bearing base 19 to which a bearing 14 constituting the indoor blower 11 is supported and fixed is attached to the second blower support portion 16. Here, the left and right gutter sections 30a, 3
The structure of Ob will be described. The left and right gutter sections 30a,
Since 30b is formed symmetrically, only the gutter portion 30a will be described.

As shown in FIG. 4, the gutter portion 30a has a first wall portion 31 located outside the unit body 1 in the width direction, and a gutter portion 30a located closer to the air passage 17 of the unit body 1 than the first wall portion 31. A second wall portion 32, a third wall portion 33 provided between the first wall portion 31 and the second wall portion 32, and a plate-like member 34 connecting these, and have a substantially E-shaped cross section. It is formed in a shape. Thus, the gutter portion 30a is formed with a high strength by connecting the first wall portion 31, the second wall portion 32, and the third wall portion 33 with the single plate-shaped member 34.

The first wall portion 31, the third wall portion 33, and the plate member 34 form a flow path P through which the drain water w flows, and the rear drain pan 6 is opposed to the flow path P.
b is located at the drain outlet (not shown). The upper edge of the third wall 33 is formed lower than the upper edge of the second wall 32.

When the air conditioner thus constructed is operated, the unit body 1 performs a refrigeration cycle operation for the heat exchanger 5 and the indoor blower 11.
By driving the cross flow fan 12, the air to be conditioned is sucked into the unit main body 1 from the front suction port 2a and the upper suction port 2b, and passes through the heat exchanger 5 to exchange heat. The heat exchange air after the heat exchange is supplied to the air passage 17
To be blown into the room to be conditioned.

In the cooling operation, dew condensation occurs in the heat exchanger 5, and drain water w is generated and dropped. Drain water w dropped from the front heat exchanger 5a is received by the front drain pan 6a, and drain water w dropped from the rear heat exchanger 5b is received by the rear drain pan 6b.

The rear drain pan 6b is connected to the front drain pan 6a.
From a higher position, the drain water w collected in the rear drain pan 6b flows through the flow paths P of the left and right gutter portions 30a and 30b formed at both ends, and is collected in the front drain pan 6a. . Then, the wastewater is collectively drained from the front drain pan 6a to the outside of the room.

On the other hand, since the drain water w flowing from the rear drain pan 6b to the front drain pan 6a is located such that the drain outlet (not shown) of the rear drain pan 6b faces the flow path P, the first wall portion is formed. Flowing through the flow path P between the first wall 31 and the third wall 33, the second wall 32 is not cooled by the drain water w. Therefore, the air passage 17 of the second wall portion 32
Dew does not occur on the side wall 32a, and it is possible to prevent water droplets from scattering into the air-conditioned room due to the dew.

Also, in the unlikely event that the drain water w from the rear drain pan 6b is large and the drain water w overflows in the flow path P, the drain water w is generated between the second wall portion 32 and the third wall portion 33. Since the water flows, the drain water w can be prevented from being sucked into the air passage 17. At this time, the third wall 3
Since the upper edge of 3 is formed lower than the upper edge of the second wall portion 32, the water surface of the drain water w is blocked by the second wall portion 32 from the wind flowing through the air passage 17, and the drain water w is blown. Road 17
It can be prevented from being sucked inside.

As described above, in the air conditioner according to the present embodiment, dew is formed on the wall surface 32a of the left and right gutter portions 30a and 30b provided in the unit main body 1 on the side of the air passage 17 of the second wall portion 32. Without being generated, it is possible to prevent water droplets from being scattered into the room to be air-conditioned due to the condensation.

FIGS. 5A to 5C are views showing first to third modifications of the gutter portion of the air conditioner according to the present embodiment. Note that only the gutter portion located on the right side in the width direction is shown, but the gutter portion located on the left side is formed symmetrically.

The gutter portion 40a shown in FIG. 5A has a first wall portion 41 located on the outside in the width direction of the unit main body 1, and a side closer to the air passage 17 of the unit main body 1 than the first wall portion 41. , A third wall portion 43 provided between the first wall portion 41 and the second wall portion 42, a lower edge of the first wall portion 41 and a third wall portion 43. First plate-shaped member 44 for joining with lower edge
And a second plate-like member 45 connecting the upper edge of the second wall portion 42 and the upper edge of the third wall portion 43, and has a substantially S-shaped cross section.

The flow path P through which the drain water w flows through the first wall portion 41, the third wall portion 43, and the first plate member 44.
Is formed. In the gutter part 40a thus configured,
Drain water w flowing from the rear drain pan 6b to the front drain pan 6a is supplied to the flow path P between the first wall portion 41 and the third wall portion 43.
, The second wall portion 42 is not cooled by the drain water w. Therefore, dew condensation does not occur on the wall surface 42a of the second wall portion 42 on the side of the air passage 17, and it is possible to prevent water droplets from scattering into the room to be air-conditioned due to the dew condensation.

Further, by arranging the heat insulating material 46 at a portion surrounded by the second wall portion 42, the third wall portion 43, and the second plate-shaped member 45, the heat insulating effect is further improved, and dew condensation is effectively prevented. can do. Further, the structure can be simpler than the gutter portion 30a.

In this case, the heat insulating material 46 is connected to the second wall 4.
The second and third wall portions 43 are sandwiched, and a heat insulating material 46 is provided.
Does not face the air passage 17, the heat insulating material does not peel off with the passage of time as in the conventional case, and does not come into contact with the cross flow fan 11.

The gutter portion 50a shown in FIG. 5B has a first wall portion 51 which is located outward of the unit body 1 in the width direction, and a side closer to the air passage 17 of the unit body 1 than the first wall portion 51. , A third wall 53 provided between the first wall 51 and the second wall 52, a second wall 52 and a third
A first plate that connects the fourth wall 54 provided between the first wall 51 and the lower edge of the first wall 51, the lower edge of the third wall 53, and the lower edge of the fourth wall 54. Plate-like member 55 that connects the upper edge of the second wall 52 and the upper edge of the fourth wall 54
It is composed of

The flow path P through which the drain water w flows through the first wall portion 51, the third wall portion 53, and the first plate-like member 55.
Is formed. Further, a heat insulating material 57 is provided in a portion surrounded by the second wall portion 52, the fourth wall portion 54, and the second plate-shaped member 56.

The gutter section 50a thus configured has the same effect as the gutter section 30a. Also, the second wall 52,
By arranging a heat insulating material at a portion surrounded by the fourth wall portion 54 and the second plate-shaped member 56, the heat insulating effect is further improved,
Dew condensation on the wall surface 52a of the second wall portion 52 can be effectively prevented.

The gutter portion 60a shown in FIG. 5C has a first wall portion 61 which is located outward in the width direction of the unit main body 1, and the air passage 17 side of the unit main body 1 with respect to the first wall portion 61. , A third wall 63 provided between the first wall 61 and the second wall 62, a lower edge of the first wall 61, A first plate-like member 64 connecting the lower edge and the second wall 62; an upper edge of the second wall 62 and the third wall 6;
3 and a second plate-like member 65 that couples the upper edge of the third member 3 and has a substantially P-shaped cross section. Thus, the gutter portion 60a is formed with a high strength by connecting the first wall portion 61, the second wall portion 62, and the third wall portion 63 with the single first plate-shaped member 64.

The flow path P through which the drain water w flows through the first wall portion 61, the third wall portion 63, and the first plate-like member 64.
Is formed. In the gutter part 60a thus configured,
Drain water w flowing from the rear drain pan 6b to the front drain pan 6a flows through the flow path P between the first wall portion 61 and the third wall portion 63.
, The second wall portion 62 is not cooled by the drain water w. Therefore, no dew condensation occurs on the wall surface 62a of the second wall portion 62 on the side of the airflow path 17, and it is possible to prevent water droplets from scattering into the air-conditioned room due to the dew condensation.

FIG. 6 is a view showing a fourth modification of the gutter portion of the air conditioner according to the present embodiment. Note that only the gutter portion located on the right side in the width direction is shown, but the gutter portion located on the left side is formed symmetrically.

The gutter 70a shown in FIG.
, A second wall 72 located closer to the air passage 17 of the unit body 1 than the first wall 71, a first wall 71, and a second wall Front drain pan 6a having a relatively low flow rate of the drain water w between the portion 72
Closing member that closes the space formed by the third wall portion 73 provided on the side, the plate-like member 74 that couples them, and the second wall portion 72 and the third wall portion 73 on the side of the rear drain pan 6b. 75. The first wall 71 and the third wall 71
A flow path P through which the drain water w flows is formed by the wall portion 73.

In the gutter portion 70a configured as described above, the flow rate of the drain water w is high on the rear drain pan 6b side, so that even if the drain water w comes into contact with the second wall portion 72, there is little dew condensation. Even on the front drain pan 6a side, even if the flow velocity is slow, it flows only into the flow path P before reaching the front drain pan 6a, and the dew condensation on the wall surface 72a of the second wall portion 72 can be prevented, and the same effect as the above-described gutter portion 30a is obtained. be able to. It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0060]

According to the first aspect of the present invention, water is collected at the rear drain pan, which is located at the widthwise end of the unit body of the air passage, extends between the front drain pan and the rear drain pan. A gutter for guiding the drain water to the front drain pan is located outside the unit body in the width direction and a first wall is located inward of the unit body in the width direction of the unit body and the inside is blown. A second wall facing the road, and a flow path for drain water flowing between the first wall and the first wall provided between the first wall and the second wall; Form a gap between
Because it includes a third wall portion which is formed, spaced a part and a third wall portion having a low drain water temperature flows are never third wall portion is cooled. Therefore, dew condensation on the side wall surface of the outlet of the third wall portion can be prevented.

According to the second aspect of the present invention, the gutter portion has an upper part .
Because the surface is formed in an approximately E-shaped cross section, the first
The wall portion, the second wall portion, and the third wall portion are connected by a single plate,
It can be formed with high strength. Also, even if the drain water overflows in the flow path, the second wall portion and the third
Since the drain water flows between the wall and the wall, it is possible to prevent the drain water from being sucked into the air passage.

According to the third aspect of the present invention, the upper edge of the third wall is formed lower than the upper edge of the second wall.
Even if the drain water overflows in the flow path, the water surface is blocked by the second wall portion from the wind flowing through the ventilation path,
Drain water can be prevented from being sucked into the ventilation path.

According to the fourth aspect of the present invention, the third wall is provided on the front drain pan side, and the space formed by the second wall and the third wall is closed on the rear drain pan side. Therefore, the drain water flowing from the rear drain pan flows only into the flow path before reaching the front drain pan even if the flow velocity becomes slow, and it is possible to prevent dew condensation on the third wall.

According to the fifth aspect of the present invention, since the upper edge of the second wall and the upper edge of the third wall are joined to form a substantially S-shaped cross section, the gutter has a simple structure. A part can be formed.

In the invention described in claim 6, since the heat insulating material is provided between the second wall and the third wall, the heat insulating effect is further improved, and dew condensation is effectively prevented. be able to.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an appearance of a unit main body of an indoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the indoor unit.

FIG. 3 is an exploded perspective view showing a main part of the indoor unit.

FIG. 4 is a sectional view showing a right gutter part incorporated in the indoor unit.

FIGS. 5A and 5B are views showing a modification of the right gutter part, wherein FIG. 5A is a cross-sectional view showing a first modification, FIG. 5B is a cross-sectional view showing a second modification, and FIG. Sectional drawing which shows an example.

FIG. 6 is a perspective view showing a fourth modification of the right gutter.

FIG. 7 is an exploded perspective view showing a main part of an indoor unit of a conventional air conditioner.

FIG. 8 is a sectional view showing a gutter part incorporated in the indoor unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Unit main body 2 ... Front panel 3 ... Rear plate 5 ... Heat exchanger 5a ... Front heat exchanger 5b ... Rear heat exchanger 6a ... Front drain pan 6b ... Rear drain pan 11 ... Indoor blower 30a, 30b, 40a, 40b , 50a, 50b, 6
0a, 60b, 70a, 70b ... gutter part 31, 41, 51, 61, 71 ... first wall part 32, 42, 52, 62, 72 ... second wall part 33, 43, 53, 63, 73 ... third Wall w ... Drain water P ... Flow path

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24F 1/00 361

Claims (6)

(57) [Claims] 1. A unit body in which a suction port and a discharge port extending in a width direction are formed, and a front heat exchanger located in the front and a rear heat exchanger located in the rear located in the unit body. A heat exchanger comprising: a blower that sucks air from the air-conditioned room through the suction port and distributes the air to the heat exchanger, and after performing heat exchange here, blows the air from the outlet through a blowing path; A front drain pan and a rear drain pan arranged at the lower part of the exchanger and the rear heat exchanger, respectively, located at a width direction end of the unit main body of the air passage,
And a gutter portion erected between the front drain pan and the rear drain pan, for guiding drain water collected in the rear drain pan to the front drain pan, and the gutter portion of the unit body A first wall portion located outward in the width direction; a second wall portion located inward of the unit body in the width direction of the unit main body and facing the airflow path from the first wall portion; and the first wall portion Forming a flow path for allowing the drain water to flow between the first wall portion and the first wall portion ;
An air conditioner comprising: a third wall portion having a gap formed between the second wall portion and the third wall portion. 2. The air conditioner according to claim 1, wherein the gutter portion is formed to have a substantially E-shaped cross section whose upper surface is open . 3. The air conditioner according to claim 2, wherein an upper edge of the third wall portion is formed lower than an upper edge of the second wall portion. 4. The method according to claim 1, wherein the third wall portion is provided on the front drain pan side, and a space formed by the second wall portion and the third wall portion is closed on the rear drain pan side. The air conditioner according to claim 2, characterized in that: 5. The gutter section according to claim 1, wherein an upper edge of the second wall portion and an upper edge of the third wall portion are joined to form a substantially S-shaped cross section. The air conditioner according to item 1. 6. An air conditioner according to claim 5, wherein a heat insulating material is provided between said second wall portion and said third wall portion.