JP4042194B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner having a drain pan.
[0002]
[Prior art]
Conventionally, there is an air conditioner as shown in FIG. This air conditioner includes a front side heat exchanger 32 and a rear side heat exchanger unit 33 combined in a U-shape. Further, the air conditioner includes a bottom frame 31 disposed on the rear surface side of the rear surface heat exchanger section 33, and side members 36 disposed on both lower sides of the bottom frame 31 (only the right side in FIG. And a drain pan 35 disposed below the front heat exchanger 32 so that a part of the lower side of the front heat exchanger 32 is accommodated inside.
[0003]
In the air conditioner having the above configuration, the drain generated in the front-side heat exchanger 32 flows downward through the fins 32 a of the front-side heat exchanger 32 and drops into the drain pan 35. On the other hand, the drain generated in the rear surface side heat exchanger 33 passes through the fins 33a of the rear surface side heat exchanger 33 and drops into the groove portion 31a provided on the lower side of the bottom frame 31, and then a blower fan (not shown). ) To the both sides along the groove 31a, and flows forward along the groove 31b provided so as to gradually lower toward the front surface side following the groove 31a. Then, as shown in FIG. 4, the drain that has flowed through the groove portion 31 b of the bottom frame 31 flows through the path 40 along the groove portion 34 provided in a groove shape on the side member 36, and the lower end portion of the groove portion 34. It is dripped in the drain pan 35 from 34a.
[0004]
[Problems to be solved by the invention]
By the way, in the air conditioner, as shown in FIG. 5 in which the main part A of FIG. 3 is enlarged, when the surface of the groove 34 has water repellency, the drain 50 enters the drain pan 35 from the lower end 34 a of the groove 34. Although dripping, if dust adheres to the surface of the lower end portion 34a of the groove 34 and the water repellency is lost or the water repellency is lost due to secular change, the drain 60 is placed below the groove 34 as shown in FIG. Since it wraps around and drops out of the drain pan 35, there is a drawback that water leaks out of the machine.
[0005]
Accordingly, an object of the present invention is to provide an air conditioner that can reliably guide the drain into the drain pan and prevent water leakage.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the air conditioner according to claim 1 is disposed in the path so that the downstream side is in contact with a member that guides the drain to the drain pan and a member in the drain pan or on the drain pan. A U-shaped guide member having flexibility to guide the flowing drain downstream ,
The downstream side of the guide member is in contact with a heat transfer tube of a heat exchanger in the drain pan or on the drain pan .
[0007]
According to the air conditioner of the first aspect, the drain generated in the heat exchanger or the like flows through the path and into the drain pan. At this time, the drain from the path is guided to the downstream side, that is, the drain pan side by a guide member having a U-shaped section having flexibility so that the downstream side contacts the member in the drain pan or on the drain pan. The drain guided by the guide member flows down into the drain pan through the drain pan contacting the downstream side of the guide member or a member on the drain pan. Therefore, the drain can be reliably guided into the drain pan, and water leakage can be prevented. Even if the mounting position varies, the flexible guide member can be reliably brought into contact with the heat transfer tube while being deformed.
[0008]
[0009]
Further , the drain guided by the guide member flows down into the drain pan from the downstream side of the guide member through the heat exchanger tube of the heat exchanger on the drain pan or on the drain pan. Therefore, it is not necessary to provide a separate member in the drain pan or on the drain pan, and a simple configuration can be achieved. Further, since the guide member having a U-shaped section having flexibility is in contact with the heat transfer tube, the heat transfer tube is not damaged.
The air conditioner according to claim 2 is an air conditioner in which the front side heat exchanger and the rear side heat exchanger are bent in a U shape and arranged in a casing,
A drain pan disposed under the front heat exchanger;
A path for guiding the drain generated in the rear side heat exchanger to the drain pan;
A heat transfer tube of the front-side heat exchanger in or on the drain pan;
A guide member having a U-shaped cross section which is arranged on the downstream side of the path so that the downstream side contacts the heat transfer pipe and has flexibility to guide the drain flowing through the path into the drain pan through the heat transfer pipe. It is characterized by having.
According to the air conditioner of the second aspect, the drain generated in the rear side heat exchanger flows through the path and flows into the drain pan. At this time, the drain from the above-mentioned path is made downstream by the guide member having a U-shaped section having flexibility so that the downstream side contacts the heat transfer tube of the front heat exchanger in the drain pan or on the drain pan. That is, the drain guided to the drain pan side flows down into the drain pan through the heat transfer tube of the front side heat exchanger on the drain pan or in the drain pan contacting the downstream side of the guide member. Therefore, the drain can be reliably guided into the drain pan, and water leakage can be prevented. Even if the mounting position varies, the flexible guide member can be reliably brought into contact with the heat transfer tube while being deformed.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the air conditioner of this invention is demonstrated in detail by embodiment of illustration.
[0011]
FIG. 1 shows a partial cross-sectional view as viewed from the side of an air conditioner according to an embodiment of the present invention. The front-side heat exchanger 2 and the rear-side heat exchanger 3 are disposed in a casing (not shown) by folding them in a U shape. The bottom frame 1 is disposed on the rear surface side of the rear heat exchanger 3, and side members 6 (only the right side is shown in FIG. 1) are disposed on both lower ends of the bottom frame 1, and the side members 6 on both sides are disposed. Is sandwiching a blower fan (not shown). Further, a drain pan 5 is disposed below the front heat exchanger 2. Further, the bottom frame 1 is provided with a groove portion 1a having a V-shaped cross section for guiding the drain generated in the rear side heat exchanger 3 to both sides in the left-right direction (direction perpendicular to the paper surface of FIG. 1). A groove portion 1b having a U-shaped cross section (only the right side is shown in FIG. 1) extending toward the front surface side is provided on both sides of the groove.
[0012]
In addition, as shown in FIG. 2, the side surface member 6 is provided with a groove portion 4 that becomes lower from the rear surface side toward the front surface side. A channel 20 through which drain flows to the drain pan 5 is formed by the grooves 1 a and 1 b (shown in FIG. 1) of the bottom frame 1 and the groove 4 of the side member 6. A soft guide member 11 having a U-shaped cross section is attached to the downstream side of the groove 4. The soft guide member 11 has gradually lower side walls from the upstream side toward the downstream side, and a notch 11b is provided at the distal end portion 11a of the soft guide member 11. The tip 11a of the soft guide member 11 is in contact with the lower heat transfer tube 12 of the front heat exchanger 2 (shown in FIG. 1). When the distal end portion 11a of the soft guide member 11 is brought into contact with the curved surface of the heat transfer tube 12, the notch 11b of the soft guide member 11 is expanded so that the soft guide member 11 and the heat transfer tube 12 are in contact with each other. ing.
[0013]
In the air conditioner having the above configuration, as shown in FIG. 1, the drain generated in the front-side heat exchanger 2 is guided into the drain pan 5 through the fins 2 a of the front-side heat exchanger 2, while the rear-side heat The drain generated in the exchanger 3 flows along the grooves 1 a and 1 b provided in the bottom frame 1 through the fins 3 a of the rear heat exchanger 3. Then, the drain that has flowed through the path 20 (shown in FIG. 2) flows into the drain pan 5. At this time, the drain which flows through the said path | route 20 is guided to the drain pan 5 side by the soft guide member 11 arrange | positioned so that a downstream may contact the heat exchanger tube 12 located in the drain pan 5 of the said front side heat exchanger 2. FIG. Then, the drain guided by the soft guide member 11 is dropped into the drain pan 5 through the heat transfer tube 12 that contacts the downstream side of the soft guide member 11.
[0014]
Therefore, the drain can be reliably guided into the drain pan and water leakage to the outside of the machine can be prevented. Even if the mounting position varies, the distal end portion 11a of the soft guide member 11 can be reliably brought into contact with the heat transfer tube 12 while being deformed, and the reliability can be improved.
[0015]
Further, the drain guided to the soft guide member 11 is dropped into the drain pan 5 from the downstream side of the soft guide member 11 through the heat transfer tube 12 below the heat exchanger 2 in the drain pan 5. There is no need to provide a separate member inside or on the drain pan 5, and a simple configuration can be achieved, thereby reducing costs. Further, since the flexible guide member 11 having flexibility comes into contact with the heat transfer tube 12, the heat transfer tube 12 is not damaged.
[0016]
In the above embodiment, the path 20 is formed by the grooves 1a and 1b of the bottom frame 1 and the groove 4 of the side member 6. However, the configuration of the path for guiding the drain to the drain pan is not limited to this, and the bottom frame or the side member is used. Depending on the shape and the like, an appropriate configuration may be used.
[0017]
Moreover, in the said embodiment, although the front-end | tip part 11a of the soft guide member 11 was made to contact | abut to the heat exchanger tube 12 of the front surface side heat exchanger 2, another member (for example, drain pan) in a drain pan or on a drain pan is used. May be brought into contact with a projection provided inside.
[0018]
Moreover, in the said embodiment, although the air conditioner which has the front side heat exchanger 2 and the rear side heat exchanger 3 was demonstrated, this invention is applied to the air conditioner which has only a front side heat exchanger. Also good. In this case, the soft guide member is disposed in the path for guiding the drain from the front heat exchanger to the drain pan so that the downstream side is in contact with the member in the drain pan or on the drain pan.
[0019]
【The invention's effect】
As is clear from the above, the air conditioner according to the first aspect of the present invention is provided with a path for guiding the drain to the drain pan, and the flexible air conditioner arranged in the path so that the downstream side contacts the member in the drain pan or on the drain pan. the U-shaped section of the guide member having a gender, I der which guides the drain flowing through the path on the downstream side, the downstream side of the guide member abuts against the heat transfer tube of the heat exchanger on the drain pan or drain pan Is .
[0020]
Therefore, according to the air conditioner of the invention of claim 1, the drain generated in the heat exchanger or the like is guided by the path, and further guided by the guide member having a U-shaped cross section having the flexibility. Since it flows down into the drain pan from the downstream side of the guide member through the drain pan or the member on the drain pan that contacts the downstream side, the drain can be reliably guided into the drain pan and water leakage can be prevented. Even if the mounting position varies, the flexible guide member can be reliably brought into contact with the heat transfer tube while being deformed, and the reliability can be improved.
[0021]
Further, since the downstream side of the upper Symbol guide member is in contact with the heat transfer tube of the heat exchanger on the drain pan or the drain pan, it is not necessary to provide a separate member on the drain pan or drain pan, by a simple structure Can do. Moreover, since the flexible guide member contacts the heat transfer tube, the heat transfer tube is not damaged.
An air conditioner according to a second aspect of the present invention is an air conditioner in which a front-side heat exchanger and a rear-side heat exchanger are bent in a U shape and arranged in a casing, and the drain is guided to a drain pan. It flows through the path by a U-shaped guide member having a path and having a flexibility arranged in the path so that the downstream side contacts the heat transfer tube of the front heat exchanger in the drain pan or on the drain pan. The drain is guided downstream.
Therefore, according to the air conditioner of the invention of claim 2 , the drain generated in the rear side heat exchanger is guided by the path, and is further guided by the guide member having a U-shaped section having flexibility. , It flows down into the drain pan through the heat transfer tube of the heat exchanger on the front side of the drain pan or on the drain pan that contacts the downstream side from the downstream side of the guide member, so that the drain is surely guided into the drain pan and water leakage is prevented. Can be prevented. Even if the mounting position varies, the flexible guide member can be reliably brought into contact with the heat transfer tube while being deformed, and the reliability can be improved.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view of an air conditioner according to an embodiment of the present invention.
FIG. 2 is a perspective view of a main part of the air conditioner.
FIG. 3 is a partial cross-sectional view of a conventional air conditioner.
FIG. 4 is a perspective view of a main part of the air conditioner.
5 is an enlarged view of the main part A of FIG. 3, and is an enlarged view of the main part A of FIG. 3 when the lower end of the side member has water repellency.
6 is an enlarged view of a main part A of FIG. 3, and shows a case where water repellency is lost at the lower end of the side member.
[Explanation of symbols]
1 ... bottom frame, 2 ... front side heat exchanger,
3 ... rear side heat exchanger, 4 ... groove,
5 ... Drain pan, 6 ... Side member,
11 ... soft guide member, 12 ... heat transfer tube,
20 ... route.

Claims (2)

A path ( 20 ) for leading the drain to the drain pan ( 5 ) ;
Disposed above the path (20) so that the downstream side is in contact with the member on the drain pan (5) or in the drain pan (5), cross-section having the flexibility to guide the drain flowing the path (20) downstream A U-shaped guide member ( 11 ) ,
The air conditioner characterized in that the downstream side of the guide member (11) is in contact with the heat transfer tube (12) of the heat exchanger (2) in the drain pan (5) or on the drain pan (5). An air conditioner in which a front side heat exchanger (2) and a rear side heat exchanger (3) are bent in a U shape and arranged in a casing,
A drain pan (5) disposed below the front heat exchanger (2);
A path (20) for guiding the drain generated in the rear heat exchanger (3) to the drain pan (5);
A heat transfer tube (12) of the front heat exchanger (2) in the drain pan (5) or on the drain pan (5);
The drain which is arranged on the downstream side of the path (20) so that the downstream side contacts the heat transfer pipe (12) and flows through the path (20) into the drain pan (5) via the heat transfer pipe (12). An air conditioner comprising a guide member (11) having a U-shaped cross section having flexibility for guiding.

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