JPH08312993A - Draining device for indoor-installed air conditioner - Google Patents

Abstract

PURPOSE: To automatically stop draining from a drain pipe without implementing any additional operation when a drain tank is removed from a main unit, in a draining device of an indoor-installed air conditioner wherein condensate formed in an evaporator provided within the main unit of the indoor-installed air conditioner is received by a drain pan and discharged to a drain tank through a drain pipe. CONSTITUTION: A stop valve 5 is provided in a drain pipe 4 formed in 1 bottom of a drain pan 2 for receiving condensate. When a drain tank 7 is installed in a main unit 1, a leg 5a of the stop valve 5 is pushed upward by a stop valve opening plate 6 to open the drain pipe 4 and when the drain tank 7 is removed from the main unit 1, the stop valve 5 moves downward to close the drain pipe 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor air conditioner which is provided in a main body of an indoor air conditioner such as a dehumidifier or a local air conditioner and discharges condensed water generated by the evaporator to a drain tank. Machine drainage equipment.

[0002]

2. Description of the Related Art Generally, in a drainage device for an indoor air conditioner such as a dehumidifier or a local air conditioner, after the condensed water generated in the evaporator is received by a dew tray, the drainage provided on the lower surface of the dew tray is It is designed to drain into a drainage tank through a pipe. In this case, when removing the drainage tank from the main body of the indoor air conditioner to discard the condensed water accumulated in the drainage tank, the condensed water drips from the drain pipe and wets the inside of the main body or flows onto the floor surface. In order to prevent this, the operation of the indoor air conditioner had to be stopped.

In order to cope with such a problem, Japanese Utility Model Laid-Open No. 4-120535 discloses a structure in which an L-shaped pipe is provided in a drainage device of a local air conditioner. FIG. 5 is a partial cross-sectional configuration diagram of the drainage device during normal operation of the local cooling machine, and FIG. 6 is a partial cross-sectional configuration diagram of the drainage device when the drainage tank is removed.

When the local air conditioner is operated, the main body 101
Since an evaporator (not shown) disposed inside absorbs heat, water vapor in the air is condensed on the outer surface of the evaporator to generate condensed water, which is received by the dew tray 102. Here, a concave drain reservoir 103 is provided in a part of the dew tray 102.
Is formed, and a drain pipe 104 is provided on the lower surface of the drain reservoir 103, and the drain pipe 104 further includes an L-shaped pipe 1.
05 is rotatably fitted. During normal operation of this local air conditioner, as shown in FIG. 5, by directing the tip portion 106 of the L-shaped pipe 105 downward, the condensed water passes through the drain pipe 104 and the drain tank 107 via the L-shaped pipe 105.
Is discharged to.

When the drainage tank 107 is full, the drainage tank 107 is removed from the main body 101 in order to discard the accumulated water. At that time, as shown in FIG.
When the tip portion 106 of the L-shaped pipe 105 is rotated upward, the condensed water is not discharged from the L-shaped pipe 105 and the drain reservoir 103
Since the water can be temporarily stored inside, even if the drain tank 107 is removed from the main body 101 without stopping the operation of the local air conditioner, the condensed water does not drip into the main body 101.

[0006]

However, in the structure of Japanese Utility Model Laid-Open No. 4-120535 shown in FIGS. 5 and 6, when the drain tank 107 is removed from the main body 101,
The tip portion 106 of the L-shaped tube 105 must be rotated upward, and when the drain tank 107 is attached to the main body 101 again, the tip portion 106 of the L-shaped tube 105 is restored.
Had to be rotated downwards, which was troublesome. Also, if the tip portion 106 of the L-shaped tube 105 is left facing upward for a long time, the water level of the condensed water in the drain reservoir 103 rises and reaches the height of the tip portion 106 of the L-shaped tube 105. Then, there is a problem that condensed water overflows into the main body 101.

The present invention has been made in order to solve such a problem, and condensate water generated in an evaporator provided in a main body of an indoor air conditioner such as a dehumidifier or a local air conditioner. In a drainage device of an indoor air conditioner that receives the water from a dew tray and then discharges it through a drain pipe to a drain tank, when the drain tank is removed from the main body, drainage from the drain pipe is performed without additional work. The purpose is to stop automatically and to prevent the condensed water in the dew tray from overflowing into the main body even when the operation is defective and the drain pipe is blocked. .

[0008]

In order to achieve the above object, according to the present invention, a dew tray for receiving condensed water generated in an evaporator provided in a main body of an indoor air conditioner, and a lower surface of the dew tray. An indoor air conditioner equipped with a drain section provided in the main body and a drain tank detachably attached to the inside of the main body below the dew tray for collecting condensed water discharged through the drain section. The drainage device of the machine is provided with a drainage stopping means for automatically stopping drainage from the drainage pipe when the drainage tank is removed from the main body.

Further, according to the present invention, the drainage stop means is provided in the drainage section, and when the drainage tank is attached to the main body, the drainage section is pushed up by a push-up member provided in the drainage tank. To allow drainage from the drainage part, and when the drainage tank is removed from the main body, the push-up member comes off to descend and close the drainage part to drainage from the drainage part. It uses a water shutoff valve to stop.

Further, according to the present invention, the dew tray for receiving condensed water generated in the evaporator provided in the main body of the indoor air conditioner, the drain portion provided on the lower surface of the dew tray, and the drain portion. In order to collect the condensed water discharged through
In a drainage device of an indoor air conditioner equipped with a drainage tank detachably attached to the lower part of the dew tray in the main body, when the drainage tank is removed from the main body, A drainage stopping means for automatically stopping the drainage, and a bypass for guiding the condensed water in the dew tray to the drainage tank when the drainage section remains closed due to malfunction of the drainage stopping means. I am trying.

[0011]

Therefore, according to the present invention, when the drainage tank is removed from the indoor air conditioner body in order to discard the water accumulated in the drainage tank, the drainage from the drainage section is automatically stopped. . Then, when the drainage from the drainage section is stopped, the condensed water is stored in the dew tray.

According to the present invention, the drainage stopping means is a water shutoff valve provided in the drainage portion of the dew tray, and the water shutoff valve is provided in the drainage tank when the drainage tank is attached to the main body. When the drainage tank is removed from the main body by being pushed up by the pushing-up member, the pushing-up member comes off to lower the drainage portion and close the drainage portion to stop drainage from the drainage portion.

Further, according to the present invention, when the drain tank is removed from the main body of the indoor air conditioner, drainage from the drainage section is automatically stopped, and at that time, condensed water is stored in the dew tray. Moreover, when the operation of the drainage stopping means becomes defective and the drainage portion remains blocked, the condensed water in the dew tray is guided to the drainage tank via the bypass without overflowing into the main body.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a drainage device of a dehumidifier will be described below with reference to the drawings. 1 to 3 show a first embodiment of the present invention. Of these, FIG. 1 is a cross-sectional view of the entire dehumidifier viewed from the side, and FIGS.
FIG. 3 is a partial cross-sectional view of the drainage device as viewed from the front, during normal operation of the dehumidifier and when the drainage tank is removed.

This dehumidifier has a compressor 11
A general refrigeration cycle including an evaporator 12, a condenser 13, and a flow pipe (not shown) that connects them and through which a refrigerant flows is mounted. Then, the air taken in from the suction port 15 by the sirocco fan 14 for blowing air, after dust is removed by the filter 17, is once cooled through the evaporator 12, and further sent to the condenser 13 to be warmed, Finally, it is discharged from the outlet 16.

At this time, the air taken into the main body 1 is condensed and removed by the water vapor contained in the air when it is cooled by the evaporator 12. Therefore, if the operation of the dehumidifier is continued, Absolute humidity will decrease. At this time, the condensed water generated in the evaporator 12 is dropped on the dew tray 2 and is discharged into the drain tank 7 through the drain pipe 4. Here, in this embodiment, in order to increase the capacity of the dew tray 2, a concave drain reservoir 3 is formed around the place where the drain pipe 4 is provided. Of course, the same purpose can be achieved by making the entire dew tray 2 deep.

In the first embodiment, as shown in FIGS. 1 to 3, the drain pipe 4 is provided with a water shutoff valve 5. Body 1
When the drainage tank 7 is attached to the drainage tank 7, the legs 5a of the water shutoff valve 5 have an intake port 8 of the drainage tank 7 as shown in FIG.
The drainage pipe 4 is opened by being pushed up by the water shutoff valve opening plate 6 provided in the drainage pan 2, and the condensed water collected in the drain reservoir 3 of the dew tray 2 is discharged into the drainage tank 7 through the drainage pipe 4. It

Further, when the drain tank 7 is removed from the main body 1, as shown in FIG. 3, the water shutoff valve 5 is lowered by closing the water shutoff valve opening plate 6 to close the drainage pipe 4.
The condensed water does not drip into the main body 1. In this case, if the drain reservoir 3 is formed to have a large volume, a large amount of condensed water can be stored in the dew condensation tray 2, so that the dehumidifier can be operated without stopping.
The drainage tank 7 can be attached / detached and the accumulated condensed water can be discarded with a sufficient time margin.

FIG. 3 is a partial vertical cross-sectional view of the drainage device of the dehumidifier according to the second embodiment of the present invention as viewed from the front. Here, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted. In the present embodiment, in addition to providing the water shutoff valve 5 on the drain pipe 4, a bypass pipe 9 extending from the upper side surface of the drain reservoir 3 to the intake port 8 of the drain tank 7 is provided.
Is provided. The overall structure of the dehumidifier according to this embodiment is the same as that of the first embodiment except that the bypass pipe 9 is provided.

FIG. 3 shows a state in which the water shutoff valve 5 is left in a closed state because the operation of the water shutoff valve 5 becomes defective due to adhesion of scale. However, even if such a failure occurs, the condensed water that has accumulated in the dew tray 2 does not overflow into the main body 1 and the intake port 8 passes through the bypass pipe 9.
Can be reliably discharged into the drainage tank 7.

Although the embodiment in which the present invention is applied to the dehumidifier has been described above, the present invention is not limited to this, and can be applied to general indoor air conditioners such as local air conditioners.

[0022]

According to the first aspect of the present invention, in the drainage device of the indoor air conditioner, when the drainage tank is removed from the main body in order to discard the condensed water accumulated in the drainage tank, the drainage is stopped. Drainage from the drainage section is automatically stopped by the means. Therefore, in order to prevent the condensed water from dripping from the drainage part and wetting the inside of the main body or flowing out onto the floor surface, stop the operation of the indoor air conditioner or perform additional work on the drainage part. No need to add.

According to the second aspect of the present invention, a water shutoff valve is provided in the drainage section as the drainage stop means, and the water shutoff valve is a push-up member provided in the drainage tank when the drainage tank is attached to the main body. When the drain tank is removed from the main body, it is pushed up to open and close the drain part when the drain tank is removed from the main body. The drainage from the drainage section is automatically controlled without additional effort or power.

According to the invention of claim 3, when the drainage tank is removed from the main body, the drainage stopping means automatically stops the drainage from the drainage portion, so that the condensed water drips from the drainage portion to wet the inside of the main body. It is not necessary to stop the operation of the indoor air conditioner or add additional work to the drainage part in order to prevent it from flowing out or onto the floor surface. Also, even if the drainage part remains closed due to malfunction of the drainage stopping means, the condensed water accumulated in the dew tray can be discharged to the drainage tank through the bypass, so that the condensed water overflows into the main body. Does not flow out or spill onto the floor.

[Brief description of drawings]

FIG. 1 is a side sectional view of a dehumidifier according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of the drainage device in normal operation of the dehumidifier of FIG. 1 as seen from the front.

3 is a partial cross-sectional view of the drainage device when the drainage tank of the dehumidifier shown in FIG. 1 is removed, as viewed from the front.

FIG. 4 is a partial cross-sectional view of the drainage device when a malfunction occurs in the water shutoff valve in the dehumidifier according to the second embodiment of the present invention as seen from the front.

FIG. 5 is a partial cross-sectional view of a drainage device during normal operation of a conventional local air conditioner.

6 is a partial cross-sectional view of the drainage device when the drainage tank of the local air conditioner of FIG. 5 is removed.

[Explanation of symbols]

 1 Main body 2 Dew pan 3 Drain reservoir 4 Drain pipe 5 Water stop valve 6 Water stop valve opening plate 7 Drain tank 8 Intake port 11 Compressor 12 Evaporator 13 Condenser 14 Sirocco fan 15 Suction port 16 Outlet 17 Filter

Claims (3)

[Claims] 1. A dew tray for receiving condensed water generated in an evaporator provided in a main body of an indoor air conditioner, a drainage portion provided on a lower surface of the dew tray, and a drainage portion through the drainage portion. In a drainage device of an indoor air conditioner equipped with a drainage tank removably mounted in the main body under the dew tray to store condensed water, the drainage tank is removed from the main body. At this time, a drainage device for an indoor air conditioner, which is provided with a drainage stop means for automatically stopping drainage from the drainage part. 2. The drainage stopping means is provided in the drainage section, and when the drainage tank is attached to the main body,
The drain member is pushed up by a push-up member provided in the drain tank to open the drain portion, thereby enabling drainage from the drain portion, and the push-up member being detached when the drain tank is removed from the main body. The drainage device for an indoor air conditioner according to claim 1, wherein the drainage device is a water shutoff valve that descends to close the drainage part to stop drainage from the drainage part. 3. A dew tray for receiving condensed water generated in an evaporator provided in a main body of an indoor air conditioner, a drainage portion provided on a lower surface of the dew tray, and a drainage portion through the drainage portion. In a drainage device of an indoor air conditioner equipped with a drainage tank removably mounted in the main body under the dew tray to store condensed water, the drainage tank is removed from the main body. At this time, drainage stopping means for automatically stopping drainage from the drainage part, and when the drainage part remains closed due to malfunction of the drainage stopping means, the condensed water in the dew tray is removed from the drainage tank. A drainage device for an indoor air conditioner, comprising: