JP2000161705A - Indoor unit for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently drain and to reduce dew formation on a back surface of a housing of an air conditioner body, by inclining a drain pan for a back surface side heat exchanger provided in an indoor unit of an air conditioner in a lengthwise direction, and providing a drain discharge port for discharging dew at an oblique lowermost point of the pan. SOLUTION: Front surface side and back surface side heat exchangers are fixed to a body housing 1 in the indoor unit for an air conditioner, and a drain pan 6 is arranged under the back surface side heat exchanger. The pan 6 is obliquely provided, and a drain discharge port 7 is disposed at an oblique lower most point. Dew condensed at the back surface side heat exchanger is drained from the port 7 through the pan 6. The pan 6 is inclined in a lengthwise direction to efficiently discharge, thereby reducing a dew formation on the back surface of the housing 1. A rib 9 is provided at an air duct side of a housing wall 8 of an engaging part of the housing 1 with a right side air duct blocking plate 5 to easily recover dew which is possible to enter the duct.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dew collecting structure for an indoor unit of an air conditioner.

[0002]

2. Description of the Related Art FIGS. 8 and 9 show, for example, JP-A-9-8503.
It is a figure which shows the indoor unit of the conventional air conditioner shown in No. 2 publication. 8 and 9, a main body casing 1, a panel of a design part attached to the front face of the main body casing 1, a front cover attached to the front face of the panel, the front face of the front cover, the front face of the panel, and the upper face The front-side heat exchanger 3 and the rear-side heat exchanger 4 are arranged in an air passage connecting the formed suction port and the blower 2. Also, a wall-mounted air conditioner having a mechanism for collecting dew adhering to the back side heat exchanger 4 with the back side heat exchanger drain pan 6 horizontally in the longitudinal direction and discharging the dew from the left and right drain discharge ports. It is an indoor unit.

Next, the operation will be described. In such a conventional air conditioner, the front-side heat exchanger 3 and the rear-side heat exchanger 4 are fixed to the main body casing 1, and the rear-side heat exchanger 4 is fixed.
Is collected by a drain pan 6 for the rear heat exchanger. The dew is discharged from the left and right drain outlets of the back-side heat exchanger drain pan 6. A substantially triangular right-side air passage blocking plate 5 is provided between the main body housing wall and the front side heat exchanger 3 and the back side heat exchanger 4 fixed to the main body housing 1. To prevent wind from invading. However, FIG.
As shown in (1), there is a possibility that dew 10 condensed on the substantially triangular right-side airflow path blocking plate 5 may enter the airflow path.

[0004]

The conventional air conditioner is configured as described above. Since the drain pan 6 for the heat exchanger on the rear side of the main body 1 is horizontal, dew easily accumulates and the drainage efficiency is improved. That is, there is a problem that the dew is accumulated and the dew easily accumulates on the rear surface of the main body housing 1. Further, there is a problem that dew condensed on the substantially triangular right-side airflow path blocking plate 5 may enter the airflow path.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a first object of the present invention is to incline a drain pan of a rear heat exchanger fixed to a main body casing in a longitudinal direction. Accordingly, it is possible to obtain an indoor unit of an air conditioner capable of efficiently draining water with less possibility of accumulation of dew and reducing condensation on the rear surface of the main body housing.

A second object is to provide a clearance for collecting dew toward the air passage side of the main body housing at a fitting portion between the main body housing and the substantially triangular right-side air passage closing plate in the main body housing wall. An object of the present invention is to provide an indoor unit of an air conditioner capable of collecting dew that may enter the air passage by providing a rib or the like having a rib.

[0007]

According to the indoor unit of an air conditioner according to the present invention, the drain pan for the rear heat exchanger is inclined in the longitudinal direction, and dew is discharged to the lowest point of the inclined part of the drain pan for the rear heat exchanger. A drain discharge port is provided.

Further, the drain pan for the back side heat exchanger is inclined to one side in the longitudinal direction.

Further, the drain pan for the back side heat exchanger is inclined downward from the center in the longitudinal direction toward both sides.

Further, the drain pan for the back side heat exchanger is inclined downward from both sides in the longitudinal direction toward the center.

A rib is provided at a fitting portion between the main housing and the substantially triangular right-side air passage closing plate from the main housing wall air passage side to the inside of the air passage.

The rib is provided so as to protrude at a substantially right angle from the wall of the main body housing toward the inside of the air passage.

Further, the rib is formed to have a substantially L-shaped cross section, and a tub-shaped gap for collecting dew is provided between the rib and a substantially triangular right-side air path closing plate.

Further, a fitting portion near a rib between the main body housing and the right side air path closing plate is inclined outward of the air path.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the first embodiment of the present invention, and is a front view of an indoor unit of an air conditioner. The overall configuration is shown in FIG.
This is the same as FIG. In the figure, a front heat exchanger 3 and a rear heat exchanger 4 are fixed to a main body housing 1. A drain pan 6 for the rear heat exchanger is provided below the rear heat exchanger 4 so as to be inclined from right to left, and a drain outlet 7 is disposed at the lowest point of the inclined portion.

Next, the operation will be described. In the air conditioner configured as described above, the dew condensed in the rear heat exchanger 4 fixed to the main housing 1 passes through the rear heat exchanger drain pan 6 of the main housing 1, and the drain outlet Drained from 7.

According to the above-described embodiment, by inclining the drain pan 6 for the back side heat exchanger in the longitudinal direction,
Since dew does not accumulate, drainage can be performed efficiently, and dew condensation on the back of the main body housing 1 can be reduced.

Embodiment 2 FIG. In the first embodiment, the back-side heat exchanger drain pan 6 is provided to be inclined from right to left. However, in the present embodiment, as shown in FIG. From the rear side of the main body housing 1 for the rear side heat exchanger of the main body housing 1 because the drain outlet 7 is disposed at the lowermost point of the inclined portion. Drain pan 6
And drained from the drain outlets 7 on the left and right sides.

Alternatively, as shown in FIG. 3, a drain pan 6 for the rear side heat exchanger is provided to be inclined from both sides toward the center, and a drain outlet 7 is arranged at the lowest point of the inclined portion, so that the rear side is provided. Dew condensed in the side heat exchanger 4 can be drained from a central drain outlet 7 through a drain pan 6 for the rear side heat exchanger of the main body casing 1.

According to the above-described embodiment, dew does not collect because the rear heat exchanger drain pan 6 fixed to the main body casing 1 is inclined downward from the center to both sides or both sides toward the center. Drainage can be performed efficiently, and dew condensation on the back of the main body housing 1 can be reduced.

Embodiment 3 4 and 5 show a third embodiment of the present invention, and are a perspective view and a sectional view of a main part of an air conditioner. In the figure, a main housing 1 and the main housing 1 are shown.
A substantially triangular right-side airflow blocking plate 5 is disposed between the front-side heat exchanger 3 and the rear-side heat exchanger 4 fixed to the right and left sides. A rib 9 protruding from the main body housing wall 8 toward the air passage is provided at the fitting portion.

In the air conditioner thus configured, the dew 10 condensed on the main body housing 1 and the substantially triangular right-side air path closing plate 5 forms ribs 9 projecting toward the air path side of the main body housing wall 8. Collected at.

According to the above-described embodiment, the provision of the rib 9 protruding from the main body housing wall portion 8 toward the air passage facilitates the collection of dew which may enter the air passage.

Embodiment 4 As shown in the cross-sectional view of the main part of FIG. A rib 9 is provided, and the dew 10 is collected in the trough-shaped gap.

Embodiment 5 FIG. As shown in the cross-sectional view of the main part of FIG. Is collected.

The right side wind path closing plate 5 and the main body housing 8 shown in FIGS. 5 to 7 are provided with new ribs 9 in a separating direction (up and down, left and right directions) as compared with the conventional one due to the presence of the ribs 9. Since no restrictions are imposed, the work at the time of disassembly in the recycling process can be easily performed with almost no change from the conventional case.

[0027]

Since the present invention is configured as described above, the following effects can be obtained. By inclining the drain pan for the rear-side heat exchanger fixed to the main body casing in the longitudinal direction, it is possible to obtain efficient drainage in which dew does not easily accumulate, and it is possible to reduce dew condensation on the rear face of the main casing.

By providing a rib protruding toward the air passage side of the body housing wall at the fitting portion between the main body housing and the substantially triangular right side air passage closing plate, dew may possibly enter the air passage. Can be easily collected.

[Brief description of the drawings]

FIG. 1 is a front view of an air conditioner according to Embodiment 1 of the present invention.

FIG. 2 is a front view of an air conditioner according to Embodiment 2 of the present invention.

FIG. 3 is a front view of an air conditioner according to Embodiment 2 of the present invention.

FIG. 4 is a main part perspective view of an air conditioner according to Embodiment 3 of the present invention.

FIG. 5 is a cross-sectional view of a main part of an air conditioner according to Embodiment 3 of the present invention.

FIG. 6 is a fragmentary cross-sectional view of an air conditioner according to Embodiment 4 of the present invention.

FIG. 7 is a fragmentary cross-sectional view of an air conditioner according to Embodiment 5 of the present invention.

FIG. 8 is a sectional view showing a conventional air conditioner.

FIG. 9 is a perspective view of a main part showing a conventional air conditioner.

FIG. 10 is a sectional view of a main part showing a conventional air conditioner.

[Explanation of symbols]

1 body case, 2 blower, 3 front heat exchanger, 4
Rear heat exchanger, 5 triangular right-side airflow blocking plate, 6
Drain pan for back side heat exchanger, 7 Drain outlet, 8
Body housing wall, 9 ribs, 10 dew.

Continued on the front page (72) Inventor Hideaki Koizumi 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Akimoto Suzuki 2-5-2, Otemachi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Tetsuya Iizuka 2-6-2 Otemachi, Chiyoda-ku, Tokyo Inside Mitsubishi Electric Engineering Co., Ltd. (72) Hideo Harada 2-6-Otemachi, Chiyoda-ku, Tokyo No. 2 Mitsubishi Electric Engineering Co., Ltd. (72) Tetsuya Tazawa, Inventor 2-6-1 Otemachi, Chiyoda-ku, Tokyo (72) Koji Yamashita Inventor, Koji Yamashita 2-chome Otemachi, Chiyoda-ku, Tokyo No. 6-2 Mitsubishi Electric Engineering Co., Ltd. (72) Inventor Hiroshi Tazawa 2-6-2 Otemachi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Engineering Co., Ltd. 3L050 BD05 BE0 2 BF07

Claims (8)

[Claims] 1. An indoor unit of an air conditioner having a front side heat exchanger and a rear side heat exchanger provided in an air passage between a suction port in a main body housing and a blower, wherein the air conditioner adheres to the rear side heat exchanger. A drain pan for the rear-side heat exchanger inclined in the longitudinal direction, which receives and collects the dew, and a drain outlet provided at the lowest point of the inclined portion of the rear-side heat exchanger drain pan and discharging the dew, An indoor unit of an air conditioner, comprising: 2. The indoor unit of an air conditioner according to claim 1, wherein the drain pan for the back side heat exchanger is inclined to one side in the longitudinal direction. 3. The indoor unit of an air conditioner according to claim 1, wherein the drain pan for the back side heat exchanger is inclined downward from the center in the longitudinal direction toward both sides. 4. The indoor unit of an air conditioner according to claim 1, wherein the drain pan for the back side heat exchanger is inclined downward from both sides in the longitudinal direction toward the center. 5. A front-side heat exchanger and a rear-side heat exchanger are provided in an air passage between a suction port and a blower in a main-unit housing, and the main-unit housing is connected to the front-side and rear-side heat exchangers. An indoor unit of an air conditioner having a substantially triangular right-side air path closing plate provided therebetween, wherein a fitting portion between the right-side air path closing plate and the main body housing wall portion includes the main body housing wall portion. An indoor unit for an air conditioner, characterized in that a rib extending toward the inside of the air passage is provided. 6. The indoor unit of an air conditioner according to claim 5, wherein the rib is provided so as to protrude from the main body housing wall at a substantially right angle toward the inside of the air passage. 7. The air according to claim 5, wherein the rib is formed to have a substantially L-shaped cross section, and a tub-shaped gap for collecting dew is provided between the rib and the right side air path closing plate. Harmonic unit indoor unit. 8. The indoor unit of an air conditioner according to claim 5, wherein a fitting portion near the rib between the main body housing and the right side air path closing plate is inclined outward of the air path. .