JP2002168474A - Drain water disposer of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly and calmly discharge drain water in the drain water disposer of an air conditioner which has a water receiving pan for receiving the drain water from a heat exchanger and a drain discharge port for discharging the drain water of this water receiving pan out of a casing, and whose drain discharge port mentioned above is separated into a drain path and an air path by partition part. SOLUTION: The drain discharge port 6 is provided in vertical direction, and a partition plate 7 is projected from the end face on outlet side of the drain discharge port 6. The drain water adhering to the partition plate 7 does not flow down within the drain path 8 and this drain water disposer can prevent it from becoming a water screen at the end face on the outlet side of the drain discharge port 6, by providing a step difference between the end face on outlet side of the drain discharge port 6 and the bottom of the partition plate 7 this way. Moreover, it becomes hard for drain water to flow back to the side of the air path 9, being hindered by the projection of the partition plate 7, thus this can prevent it from getting in water screen state by this matter too. As a result, discharge is performed smoothly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a drain water treatment device for an air conditioner, and more particularly, to a drain water treatment device provided on a negative pressure side of a blower.

[0002]

2. Description of the Related Art A conventional air conditioner and its drain water treatment apparatus will be described with reference to FIGS.

FIG. 6 is a longitudinal sectional view showing a schematic configuration of an air conditioner. An air conditioner 1 has a blower 2 and a heat exchanger 3 installed inside a main body casing 4. The water tray 5 for receiving the drain water is disposed below the heat exchanger 3, and a drain outlet 6 for discharging the drain water accumulated in the water tray 5 to the outside of the casing 4 is provided.

FIG. 7A is a perspective view of a drain water treatment apparatus including the above-mentioned water receiving tray 5 and a drain outlet 6, and FIG.
FIG. 7B is a sectional view taken along the line EE. Drain outlet 6
Is a pipe, which is separated into a drain passage 8 and an air passage 9 by a partition plate 7 along the diameter direction. The upper end of the drain passage 8 is open to the bottom of the water tray 4, and the upper end of the air passage 9 is disposed higher than the edge of the water tray 5 so as to be higher than the maximum level of drain water accumulated in the water tray 5. . With this configuration, even if the inlet side of the drain discharge port 6 has a negative pressure, air can be sucked in from the air path 9 and drain water can be discharged only from the drain path 8, and the partition plate 7 guides the drain water. As it plays a role, smooth drain water treatment is possible.

[0005]

However, in the above-mentioned conventional drain water treatment apparatus, the drain outlet 6
When the inlet side of the pump has a negative pressure, drain water can be discharged through the drainage path without any problem when the discharge amount is large (during continuous operation), but when the air conditioner is stopped or the drain water discharge amount is low, the partition plate The drain water attached to 7 does not flow down, loses the pressure of the inflowing air, forms a water film W1 due to surface tension at the end face on the outlet side, and flows backward to the air path 9 side. Further, the formed water film W1 is broken by the inflow air,
The popping sound generated at that time echoes in the room space.

[0006] Even when the inlet side of the drain outlet 6 is not at a negative pressure, when the range hood is operated in a highly airtight apartment, the air around the drain outlet 6 is pulled by the sucked airflow and the above-mentioned situation. In the same state, drain water may not be discharged.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and a drain of an air conditioner that can smoothly and gently discharge drain water without forming a water film state or flowing back to an air path side. It is intended to provide a water treatment device.

[0008]

Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 is provided in an air conditioner having a blower and a heat exchanger provided inside a main body of the air conditioner. A drain for an air conditioner having a water receiving tray for receiving drain water and a drain outlet for discharging the drain water from the water receiver to the outside of the main body, wherein the drain drain is separated into a drain passage and an air passage by a partition. In the water treatment apparatus, the drain outlet is provided in an up-down direction, and the partition portion protrudes from an end surface of the drain outlet on the outlet side.

According to a second aspect of the present invention, there is provided a water receiving tray provided inside a body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain water of the water receiving tray. And a drain outlet for discharging air to the outside of the main body.In a drain water treatment device for an air conditioner, wherein the drain outlet is separated into a drain path and an air path by a partition, the drain outlet is provided in a vertical direction. The length of the wall of the drain outlet is made different on both sides of the partition, and the drain path on the outlet side of the water receiving tray is longer than the air path.

According to a third aspect of the present invention, there is provided a water receiving tray provided inside a body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain water of the water receiving tray. And a drain outlet for discharging air to the outside of the main body.In a drain water treatment device for an air conditioner, wherein the drain outlet is separated into a drain path and an air path by a partition, the drain outlet is provided in a vertical direction. A cutout portion is formed in a wall portion on the outlet side of the drain outlet constituting the air passage.

According to a fourth aspect of the present invention, there is provided a water receiving tray provided inside a body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain water of the water receiving tray. In the drain water treatment device of an air conditioner having a drain drain port for discharging the outside of the main body, and the drain drain port is separated into a drain path and an air path by a partition portion, the drain drain port is provided sideways, The drain passage is arranged on the lower side, and the air passage is arranged on the upper side.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a schematic configuration of an air conditioner according to the present invention. An air conditioner 1 has a blower 2, a heat exchanger 3 and a heat exchanger 3 in the same manner as the conventional one described above with reference to FIG. Is installed inside the main body casing 4. Further, as a drain water treatment device according to Embodiment 1 of the present invention for discharging drain water from the heat exchanger 3, a water receiving tray 5 for receiving drain water from the heat exchanger 3 is disposed below the heat exchanger 3. A drain outlet 6 for discharging drain water accumulated in the water receiving tray 5 to the outside of the casing 4 is provided. This drain water treatment device is located on the negative pressure side of the blower 2.

FIG. 2A is a perspective view of the above drain water treatment apparatus, and FIG. 2B is a sectional view taken along the line AA.
The drain outlet 6 is a vertical pipe opening at the bottom of the water receiving tray 5, and the drain outlet 6 is separated into a drain passage 8 and an air passage 9 by a partition plate 7 extending in a diametrical direction.

The lower end of the partition plate 7 protrudes from the end face of the drain outlet 6 on the outlet side, and the length of the drain outlet 6 is L.
1. When the length of the partition plate 7 is represented by L2, L1 <L2. The upper end of the partition plate 7 is arranged higher than the edge of the water tray 5, the wall of the drain outlet 6 on the air path 9 side is arranged to the same height as the upper end of the partition plate 7, and the upper end of the air path 9 is The height of the drain water accumulated in the water receiving tray 5 is higher than the maximum water level.

In such a drain water treatment apparatus, since there is a step between the end face on the outlet side of the drain outlet 6 and the lower end of the partition plate 7, when the air conditioner 1 (the blower 2, the heat exchanger 3) is stopped. Even when the amount of drain water discharged is small, the drain water attached to the partition plate 7 in the drain passage 8 does not flow down, so that it is possible to prevent the water pressure from losing the air pressure and forming a water film on the end face of the drain drain port 6 on the outlet side. . In addition, the drain water is sandwiched between the protrusions of the partition plate 7 so that it is difficult for the drain water to flow backward to the air path 9 side. This also prevents the formation of a water film. Water film formation is less likely to occur as the length L2 of the partition plate 7 becomes longer than the length L1 of the drain outlet 6.

Therefore, the water film is not broken by the inflow of air, which is a conventional problem, and the noise generated when the water film is broken does not occur, and the drain water is discharged smoothly and quietly. be able to.

At this time, as described above, the air path 9
Is set higher than the maximum level of the drain water, the air flowing out from the upper end of the air path 9 does not scatter the drain water in the water receiving tray 5 to the outside.

FIG. 3A is a perspective view of a drain water treatment apparatus according to Embodiment 2 of the present invention, and FIG. 3B is a cross-sectional view taken along line BB. In this drain water treatment apparatus, the drain drain port 6 in the vertical direction is separated into a drain path 8 and an air path 9 by a partition plate 7, similarly to the drain water treatment apparatus of the first embodiment. In addition, the upper end of the partition plate 7 is arranged higher than the edge of the water receiving tray 5, and the wall of the drain outlet 6 on the air path 9 side is arranged to the same height as the upper end of the partition plate 7, so that the air path 9 The upper end is made higher than the maximum water level of the drain water stored in the water receiving tray 5.

This drain water treatment apparatus is used in the first embodiment.
The difference from the drain water treatment apparatus is that the length of the wall of the drain outlet 6 is made different on both sides of the partition plate 7 on the outlet side from the water receiving tray 5, that is, the air path 9
The lower end of the wall of the drain drain port 6 on the side is higher than the lower end of the partition plate 7, and the lower end of the wall of the drain drain port 6 on the drain path 8 side is at the same height as the lower end of the partition plate 7. 9
Length L3 <length L4 of the drainage path 8.

In such a drain water treatment apparatus, the end surface of the drain passage 8 and the end surface of the air passage 9 are separated from each other. , And back flow of the drain water to the air path 9 can be prevented, and the drain water can be smoothly and quietly discharged. Water film formation is less likely to occur as the length L4 of the drain passage 8 becomes longer than the length L3 of the air passage 9.

FIG. 4A is a perspective view of a drain water treatment apparatus according to Embodiment 3 of the present invention, and FIG. In this drain water treatment device, similarly to the above-mentioned drain water treatment device, the drain drain port 6 in the vertical direction is provided.
Is separated into a drain passage 8 and an air passage 9 by a partition plate 7. In addition, the upper end of the partition plate 7 is arranged higher than the edge of the water receiving tray 5, and the wall of the drain outlet 6 on the air path 9 side is arranged to the same height as the upper end of the partition plate 7, so that the air path 9 The upper end is made higher than the maximum water level of the drain water stored in the water receiving tray 5.

This drain water treatment apparatus is used in the first embodiment.
Is different from the drain water treatment apparatus of the first embodiment in that the drain outlet 6 forming the air path 9 is located closer to the outlet side than the water receiving tray 5.
Is provided with a vertically elongated notch portion 10 at the lower end of the wall portion.

In such a drain water treatment apparatus, since air always flows in from the notch 10 through the air path 9, the formation of a water film at the end face of the drain outlet 6 on the outlet side is achieved.
The backflow of the drain water to the air path 9 can be prevented,
Drain water can be discharged smoothly and quietly.

FIG. 5A is a perspective view of a drain water treatment apparatus according to Embodiment 4 of the present invention, and FIG. In this drain water treatment apparatus, the drain drain port 6 in the vertical direction is separated into a drain path 8 and an air path 9 by a partition plate 7, similarly to the drain water treatment apparatus of the first embodiment. In addition, the upper end of the partition plate 7 is arranged higher than the edge of the water receiving tray 5, and the wall of the drain outlet 6 on the air path 9 side is arranged to the same height as the upper end of the partition plate 7, so that the air path 9 The upper end is made higher than the maximum water level of the drain water stored in the water receiving tray 5.

This drain water treatment apparatus is used in the first embodiment.
Is different from that of the drain water treatment apparatus of the first embodiment in that
The drain passage 8 is arranged on the lower side, the air passage 9 is arranged on the upper side, and the length of the wall of the drain outlet 6 is made different on both sides of the partition plate 7, so that the horizontal air passage is formed. 9 in that the length L5 is smaller than the length L6 of the drainage path 8.

In such a drain water treatment apparatus, the drain water flows into the drain passage 8 from the water receiving tray 5 and flows downward from its end, so that a water film is formed at the end face of the drain outlet 6 on the outlet side. The drain water can be discharged smoothly and gently without flowing into the upper air path 9.

In FIGS. 1 to 5 showing the above embodiments, the drain outlet 6 is shown as an integrally molded product. However, the drain outlet 6 can be integrally attached to the water receiving tray 5 and the casing 4. However, the present invention is not limited to such a configuration. For example, each of the drain passage 8 and the air passage 9 is joined as an independent tube, or the air passage 9 is installed as an independent tube in contact with the inner periphery of the drain drain port 6 which is also a tube. It may be installed at a distance from the inner periphery of the drain outlet 6, or the same effect as described above can be obtained in any case.

[0028]

As described above, according to the present invention, by providing a step between the end face of the drain outlet and the partition,
The formation of a water film on the end face of the drain outlet and the backflow of the drain water to the air path can be prevented, and the drain water can be discharged smoothly and quietly.

By making the drain path longer than the air path, the end faces of both paths are separated from each other to prevent the formation of a water film on the end face of the drain outlet and the backflow of drain water to the air path. And drain water can be discharged smoothly and quietly.

By providing a notch in the wall of the drain outlet on the air path side, air always flows in from the notch, and even if a water film starts to form at the end face of the drain outlet, it is not retained. The backflow of the drain water into the air path can be prevented, and the drain water can be discharged smoothly and quietly.

By arranging the drain outlet sideways, arranging the drain path on the lower side and arranging the air path on the upper side, drain water can be discharged smoothly and quietly through the drain path on the lower side.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a drain water treatment apparatus provided in the air conditioner of FIG. 1 according to Embodiment 1 of the present invention, and FIG.
-A sectional view

FIG. 3 is a perspective view of a drain water treatment apparatus according to a second embodiment of the present invention and a sectional view taken along line BB of FIG.

FIG. 4 is a perspective view of a drain water treatment apparatus according to Embodiment 3 of the present invention and a cross-sectional view taken along line CC of FIG.

FIG. 5 is a perspective view of a drain water treatment apparatus according to a fourth embodiment of the present invention and a sectional view taken along line DD of FIG.

FIG. 6 is a schematic longitudinal sectional view of a conventional air conditioner.

7 is a perspective view of a conventional drain water treatment apparatus provided in the air conditioner of FIG. 6 and a cross-sectional view taken along line EE of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Blower 3 Heat exchanger 4 Casing 5 Water receiving tray 6 Drain drain port 7 Partition plate 8 Drain path 9 Air path 10 Notch

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Keiji Nakao 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. 3L050 BD05 BE00

Claims (4)

[Claims] 1. A water receiving tray provided inside a main body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain for discharging drain water from the water receiving tray to the outside of the main body. A drain water treatment device for an air conditioner having a drain port, wherein the drain port is separated into a drain path and an air path by a partition section. The drain port is provided in a vertical direction, and the partition section is provided with the drain section. A drain water treatment device for an air conditioner, wherein the drain water treatment device protrudes from an end face on an outlet side of a drain port. 2. A water receiving tray provided inside a main body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain for discharging drain water from the water receiving tray to the outside of the main body. A drain water treatment device for an air conditioner having a drain port, wherein the drain drain port is separated into a drain path and an air path by a partition part. A drain water treatment device for an air conditioner, wherein the length of a wall of a drain outlet is made different, and a drain path on the outlet side from the water receiving tray is configured to be longer than an air path. 3. A water receiving tray provided inside a main body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain for discharging drain water from the water receiving tray to the outside of the main body. A drain water treatment device for an air conditioner having a drain port, wherein the drain drain port is separated into a drain path and an air path by a partition part, wherein the drain drain port is provided in a vertical direction to constitute the air path. A drain water treatment device for an air conditioner, wherein a cutout portion is formed in a wall portion on an outlet side of a drain outlet. 4. A water receiving tray provided inside a main body of an air conditioner having a blower and a heat exchanger for receiving drain water from the heat exchanger, and a drain for discharging drain water from the water receiving tray to the outside of the main body. In a drain water treatment device for an air conditioner having a drain port, and the drain drain port is separated into a drain path and an air path by a partition part, the drain drain port is provided sideways, and the drain path is provided on a lower side. A drain water treatment device for an air conditioner, wherein the drain water treatment device is disposed and the air path is disposed on an upper side.