JPH11344238A - Drain structure of indoor machine of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate operation of a connection portion between a drain pan and a drain pipe in a drain structure where water is drained from the laterally elongated drain water pan of an indoor machine. SOLUTION: There are provided a laterally elongated heat exchanger 2 in a frame structure 1 of an indoor machine and a laterally elongated drain water pan 3 on a lower portion of the heat exchanger 3. There are formed connection ports 4 with the same configuration as float of a drain hose on the left and right of the drain water pan 3, on each of which connection ports the drain hose can be mounted. A flexible connection port cover 5 having the configuration of a bottomed cylinder and having an outer diameter in close vicinity with an inner diameter is mounted on the one connection port 4, and a drain hose is mounted on the other connection port 4. A flange 5a larger than an outer diameter of the connection port 4 is formed along an opening edge portion of the connection port cover 5, and a center pin 5b is provided on a bottom plate of the connection port cover 5, which center pin passes through an internal space of the connection port cover 5 and extends to be taller than the flange 5a. The connection port cover 5 is mounted or demounted using the flange 5a while pushing time center pin 5b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a connection portion with a drain pipe required for draining water from a horizontally long drain water receiver.

[0002]

2. Description of the Related Art Separate air conditioners, which are widely used as home air conditioners, have a compressor and a condenser in an outdoor unit, an evaporator in an indoor unit, and a refrigerant pipe between the outdoor unit and the indoor unit. It is connected with. The indoor unit is mounted on a wall near the ceiling of the room, and the heat exchanger constituting the evaporator is formed to be horizontally long.

[0003] During cooling operation, when a liquid refrigerant is sent to a heat exchanger constituting an evaporator of an indoor unit via a capillary, the refrigerant evaporates and cools the heat exchanger, and the room passing through this heat exchanger is cooled. Since the air is cooled, the water vapor contained in the air is condensed to form drain and water.
For this reason, a horizontally long drain water receiver is installed on the entire lower part of the heat exchanger to receive the drain water dropped from the heat exchanger. In addition, a connection port is provided in the drain water receiver and connected to a drain hose at this portion. The drain hose is connected with a refrigerant pipe to allow drain water to flow out near the outdoor unit.

[0004]

The indoor unit of the air conditioner mounted on the wall surface of the frame body has a horizontally long frame shape in consideration of the fact that it is unlikely to obstruct the wall surface, and is mounted at a position close to the ceiling. The drain water receiver for receiving the drain water dropped from the heat exchanger also has a horizontally long shape. On the other hand, when installing the indoor unit, a communication port having a diameter of about 60 mm is required on the wall of the room in order to draw out a drain hose and a refrigerant pipe outside the room.

[0005] The frame of the indoor unit is mounted with a slight inclination so that the drain water collected in the horizontally long drain water receiver flows well, and a drain hose is connected to the connection port on the lower position. Then, through the communication hole opened in the wall near this, the wall is drawn out to the outside. However, the position of the communication port on the wall is restricted by the condition of the building and the arrangement of indoor equipment, and the position of the communication port is determined by the inclination direction when installing the indoor unit. Which is better, left or right, is decided on site.

For this reason, the connection port of the drain water receiver is
Individual ones are required, and the unused one is closed with a connecting palate to prevent leakage of drain water. Generally, this connection palate is often made of inexpensive synthetic resin, and once attached, it is almost impossible to remove it. If the air conditioner is relocated, installation of the air conditioner is restricted, and the frame of the indoor unit is inclined in the same direction as when the air conditioner was previously installed, which is very inconvenient. In addition, in order to remove the once-sealed connection opening and connect in reverse, it is necessary to use a detachable screw cap, but the cost is unavoidable.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. A horizontally long heat exchanger 2 is disposed inside a frame 1 of an indoor unit. A drain water receiver 3 having a length is provided, and a connection port 4 for attaching a drain hose is formed in the drain water receiver 3. In an air conditioner that drains drain water by the drain hose, the drain water receiver 3 has a horizontally long drain water receiver 3. Has two connection ports 4 having the same inner diameter at two locations on the left and right sides, and forms a connection port lid 5 with a flexible bottomed cylinder having an outer diameter that is in close contact with the inner diameter of the connection port 4. A flange 5a that is larger than the outer diameter of the connection port 4 is provided at the edge, and a center pin 5b that extends through the internal space of the connection port cover 5 and extends taller than the flange 5a on the bottom plate of the connection port 5
The connection palate 5 can be attached and detached while pressing the center pin 5b.

A plurality of projections 5c are provided on the outer surface of the cylindrical portion of the connection port cover 5 having a bottomed cylindrical body that is in close contact with the connection port 4, and the outer diameter of the projection 5c is larger than the inner diameter of the connection port 4. The inner surface of the connection port 4 and the protruding portion 5c of the connection port cover 5 are strongly adhered to prevent leakage of drain water, and can be removed with a light force by pressing the center pin 5b when removing. .

[0009]

In order to prevent the drain water from leaking by pushing the connection mouth 5 into the inside of the connection mouth 4, the connection mouth 5 is brought into close contact with the outer surface of the connection mouth 4 by utilizing the contraction force of the material of the connection mouth 5. It is more reliable than the one, and it is very difficult to remove once it is installed. In the present invention, since the center pin 5b is provided from the bottom plate with the shape of the connection lid 5 pushed into the inside of the connection port 4 as a bottomed cylindrical body, the outer diameter of the connection lid 5 is reduced by pushing the center pin 5b, so that the connection lid can be detached. This makes it easier to carry out the operation, and when the air conditioner is relocated, the connection cover 5 can be easily changed to the opposite position.

Further, since a plurality of protrusions 5c having a diameter larger than the inner diameter of the tubular portion are provided on the outer surface of the tubular portion of the connection port cover 5, the inner surface of the connection port 4 is formed with the compressed and deformed protrusion 5c. Parts can be in close contact with each other to prevent leakage of drain water,
Even when the outer surface of the cylindrical portion is in close contact, the center pin 5b
When the button is pressed, the outer surface of the cylindrical portion is weakly adhered and mainly adhered by the protruding portion 5c.
If the connection palate 5 was pulled out by applying a force to the flange 5a while pressing b, the connection could be removed with a light force.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment of a separate type air conditioner shown in the drawing. 1 is a frame of an indoor unit of the air conditioner, 2 is a heat exchanger disposed in the frame 1, and 6 is a heat exchanger. This is a blower arranged at the back of the exchanger 2. An outdoor unit (not shown) is provided with a compressor and an outdoor heat exchanger. The refrigerant pressurized by the compressor is liquefied by the outdoor heat exchanger, and the liquid refrigerant passes through the capillary to the heat exchanger 2. When sent, the refrigerant is vaporized in the heat exchanger 2 to rapidly cool the heat exchanger 2.

Reference numeral 7 denotes an air inlet provided in the front plate of the frame 1 facing the heat exchanger 2, 8 denotes an air outlet provided in the lower part of the frame 1, and 3 denotes the entire length of the lower part of the heat exchanger 2. When the blower 6 is operated, the room air passes through the heat exchanger 2 from the air inlet 7 and blows out from the outlet 8. At this time, if water vapor is mixed in the air passing through the heat exchanger 2, dew forms on the surface of the heat exchanger 2. Drain water generated by the dew drops from the heat exchanger 2 and drains. It is received by the water receiver 3.

Reference numeral 4 denotes a cylindrical connection port attached to each side of the horizontally long drain water receiver 3 similarly to the heat exchanger 2, 5 denotes a connection port cover for closing one connection port 4, and 9 denotes a connection port cover. This is a drain hose attached to the other connection port 4 without the connection lid 5, and the heat exchanger 2 of the indoor unit is slightly higher on the side where the connection lid 5 is attached as shown in the embodiment of FIG. The drain water of the drain water receiver 3 flows smoothly to the drain hose 9.

When the indoor unit of the air conditioner is mounted on a wall as described above, the air conditioner is installed at a slight inclination to the left or right, and a communication port is opened in the wall near the drain hose 9 and the communication port is opened. The drain hose 9 is drawn out on a downward slope. The outdoor unit and the indoor unit are integrally linked to each other through a refrigerant pipe for sending refrigerant and a power supply / signal code to the communication port. The position of the communication port can be selectively mounted on either the left or right side of the indoor unit according to the state of the building or the arrangement of equipment in the room.

The connection lid 5 attached to the connection port 4 is generally not considered to be removed, and is of a type in which an inexpensive synthetic resin lid is pushed into the connection port 4 and sealed. For this reason, since it is difficult to remove the air conditioner, it is not possible to change the inclination of the indoor unit when the air conditioner is relocated, and the air conditioner is installed with a slight inclination in the same direction as before.

In order to solve this problem, an expensive screw cover which can be attached and detached may be attached to the connection port 4. However, there are very few occasions where the air conditioner is relocated. Fewer when you have to change. In this way, it is not practical to attach an expensive screw-in lid to all indoor units in advance for only the special use situation, so it is not realistic because the cost increases, and the manufacturer prepares a new connection lid as a repair part, It is a common practice to use this when necessary.

The present invention solves the above-mentioned problems by providing a connection palate having a new structure, and numeral 5a is formed by expanding an opening edge of the connection palate 5 having a bottomed cylindrical shape outward. The outer shape of the flange 5 a is larger than the outer diameter of the connection port 5. Reference numeral 5b denotes a center pin extending from the bottom plate of the connection palate 5 to a height higher than the flange 5a through the internal space. Since the connection palate 5 is formed using a flexible material,
When the center pin 5b is pressed, the cylindrical portion of the connection palate 5 is extended and the outer diameter is reduced.

Therefore, when the connection mouth 5 is pushed into the inside of the connection mouth 4 while pushing the center pin 5b, the outer diameter of the tubular portion of the connection mouth 5 becomes small, so that it can be pushed in smoothly, and the center pin 5b is pushed. If this is stopped, the outer diameter of the cylindrical portion is restored because it is a flexible material, and the cylindrical portion is strongly adhered to the inner surface of the connection port 4. When the connection palate 5 is pulled out using the flange 5a while pressing the center pin 5b, the outer diameter of the cylindrical portion of the connection palate 5 is reduced by pressing the center pin 5b. I was able to.

Reference numeral 5c denotes a plurality of protrusions provided on the outer surface of the cylindrical portion of the connection port cover 5, and the outer diameter of the protrusion 5c is set to be larger than the inner diameter of the connection port 4. For this reason, when the center pin 5b is pushed, the outer diameter of the projection 5c is reduced together with the cylindrical portion, and even when the difference between the inner diameter of the connection port 4 and the outer diameter of the projection 5c is large, the connection port cover 5 is lightly applied. Can be pushed. And since the protruding portion 5c is provided, the connection port cover 5 can be strongly adhered to the inner surface of the connection port 4, and the drain water does not leak from this portion even if the connection port cover 5 is used for a long period of time or when it is removed and attached again. It is a thing.

Further, if the center pin 5b is pressed even if the protrusion 5c is present, the outer diameter of the protrusion 5c is reduced, and even if the cylindrical portion other than the protrusion 5c is in close contact with the inner surface of the connection port 4,
When the center pin 5b is pressed, the contact is loosened, and the main contact portion becomes the protruding portion 5c, so that the connection port cover 5 can be lightly extracted from the connection port 4.

As described above, since the connection palate 5 can be easily removed in the work on site, when the air conditioner is relocated, the mounting for changing the inclination of the indoor unit can be easily performed. , And can respond to the wishes of the user. Further, since the connection mouth 5 attached to the air conditioner can be removed and used as it is, there is no need to have the connection mouth 5 as a repair part, and the management of parts can be omitted.

[0022]

As described above, in the air conditioner of the present invention, even if the position of the opening on the wall is limited when the air conditioner is relocated, the indoor unit can be installed at any angle so that it can be dealt with immediately. The indoor unit can be attached to a position desired by the user.

More specifically, the left and right connection ports 4 of the drain water receiver 3 are to be selected. Since the connection port cover 5 can be made of a flexible material, a screw such as a cap type can be used. It can be manufactured at a lower cost than one that uses parts or packing.

The center pin 5 attached to the connection palate 5
Since the position of the connection palate 5 could be changed by a simple operation of attaching and detaching while pressing b, the operation was very simple and the workability in a narrow site was improved.

Further, as an embodiment of the connection palate, a projection is provided on the outer surface of the cylindrical portion, so that the projection and the cylindrical portion are in close contact with each other due to the flexibility of the material when in close contact. Mainly because the protruding portion only comes into close contact with the inner surface of the connection port, the force required for attaching and detaching can be reduced, and the handling becomes easier.

[Brief description of the drawings]

FIG. 1 is a sectional view of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a component according to the embodiment of the present invention.

FIG. 3 is a sectional view of a main part showing a state where the components shown in FIG. 2 are attached.

FIG. 4 is a rear view of an assembly used in the air conditioner according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Heat exchanger 3 Drain water receiver 4 Connection port 5 Connection lid 5a Flange 5b Center pin 5c Projection

Claims (2)

[Claims] 1. A horizontally long heat exchanger 2 is disposed inside a frame 1 of an indoor unit, and a drain water receiver 3 having the entire length of a lower portion of the heat exchanger 2 is provided. 3, a connection port 4 for attaching a drain hose is formed, and in an air conditioner for draining drain water by the drain hose, connection ports 4 having the same inner diameter are arranged in two horizontally long drain water receivers 3, The connection port cover 5 is formed of a flexible bottomed cylindrical body having an outer diameter that is in close contact with the inner diameter of the connection port 4, and a flange 5 a that is larger than the outer diameter of the connection port 4 is provided at the opening edge of the connection port cover 5. The center pin 5 is provided on the bottom plate of the connection mouth 5 and extends through the internal space of the connection mouth 5 and extends higher than the flange 5a.
b, while pressing the center pin 5b,
The drainage structure of an indoor unit of an air conditioner, characterized by attaching and detaching. 2. A plurality of protrusions 5c are provided on the outer surface of the cylindrical portion of the connection port cover 5 of a bottomed cylindrical body that is in close contact with the connection port 4, and the outer diameter of the protrusion 5c is larger than the inner diameter of the connection port 4. The drainage structure for an indoor unit of an air conditioner according to claim 1, wherein the drainage structure is also set large.