JPH0972568A - Air conditioner indoor unit - Google Patents

Abstract

(57) [Abstract] [Problem] In an indoor unit of an air conditioner, it is possible to quickly find overflow caused by clogging of a drain outlet of a dew tray, and to prevent overflow to the electrical component side. . An air filter (8), a heat exchanger (9), and a blower fan (10) are provided in an air passage (7) between a suction port (5) in the upper part of the casing and a blowout port (6) in the lower part of the casing, and blows to the lower part of the heat exchanger (9). In the indoor unit provided with the dew tray 13 also serving as the top plate of the outlet 6, a recess for letting the overflow water flow down is provided at the center of the upper end of the rib 15 of the dew tray 13, while the tip of the dew tray located below this recess is lowered. By providing the water passage hole 17 at the position and allowing the overflow water from the dew tray 13 to drip in front of the outlet 6, the overflow water can be found at an early stage, and the position of the overflow water is limited, so that it is possible to connect to the electrical equipment. Overflow is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of an air conditioner, and more particularly, to prevent water overflowing from a dew tray due to clogging of a drain port from leaking to an electric component side or an unspecified position. Regarding means.

[0002]

2. Description of the Related Art A central section of an indoor unit of an air conditioner is shown in a side sectional view, for example, as shown in FIG. The housing 21 is composed of a main body 22, a front cover 23 that is detachably attached to the main body 22, and a front panel 24 that is openably and closably attached to the front cover 23. The front cover 23 has an upper portion and a front panel 24) having an inlet 25 for taking in the air in the room, and an air outlet 26 for delivering the heat-exchanged air into the room is provided in the lower front. These inlet 25 and outlet 2
An air filter 28, a heat exchanger 29 bent back and forth, and a blower fan 30 are arranged in an air passage 27 connecting the air conditioner 6 and the air outlet 26 with two air flow directions for vertically adjusting the air flow into the room. Plates 31 and 32 are provided. Outlet 26
The top plate is a dew tray 33 that collects the condensed water from the heat exchanger 29.
The water that has flowed down to the dew tray 33 is also used as a drainage pipe connection portion 34 that is projected on one side of the lower portion of the dew tray 33.
The water is drained to the outside through a drain pipe (not shown) connected to.

[0003]

By the way, if the drainage port of the drainage pipe connecting portion 34 is clogged for some reason, it becomes impossible to drain the water, and there is a risk that water will overflow from an unspecified position of the dew tray 33. If there is too much water, electrical safety will be impaired, and the walls and floor of the air-conditioned room will get wet or dirty. Therefore, it is an object of the present invention to provide an indoor unit of an air conditioner that enables early detection of flood water and minimizes damage.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a heat exchange is performed in an air passage that connects a suction port at an upper part of a housing and an air outlet at a lower part of the housing. And a blower fan that sends out the air that has undergone heat exchange by the heat exchanger to the air outlet, and a dew tray that also serves as the top plate of the air outlet is provided below the heat exchanger. In the indoor unit of the air conditioner, which collects the condensed water flowing down from the drainage pipe and discharges it to the outside through the drain pipe connected to the drain pipe connection part of the dew tray, the overflow water flows down to the upper center of the rib of the dew tray. While providing the recessed portion, a water passage hole is provided at a lower position of the tip of the dew tray located below the recessed portion so that overflow water flowing down from the recessed portion is dripped toward the front of the outlet.

[0005]

With the above construction, when the drainage port of the drainage pipe connection is clogged for some reason and water cannot be drained, overflow water from the dew tray goes from the recess provided at the center of the upper rib of the dew tray to the tip of the dew tray. By flowing down to the water passage hole provided at the low position of the part, and dripping from this water passage hole to the front of the outlet,
The overflow from the unspecified position is eliminated, the overflow can be noticed more quickly, and the electrical components are not wetted, so that electrical safety can be improved.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Figure 1 shows the appearance of the indoor unit.
Is a casing including a main body 2, a front cover 3 that is detachably covered by the main body 2, and a front panel 4 that is attached to the front of the front cover 3 so as to be openable and closable. This case 1
Has an inlet 5 for indoor air in the upper part and the front part thereof, and an outlet 6 in the lower part front part. The inside of the center of the housing 1 is seen from the side as shown in FIG. The heat exchanger 9
A blower fan 10 that sends out the air that has been heat-exchanged by the heat exchanger 9 to the air outlet 6 is arranged, and between the left and right sidewalls of the air outlet 6 there are two upper and lower parts that rotate in a predetermined direction according to the operation mode. Two wind direction plates 11 and 12 are provided.

The top plate of the outlet 6 is also used as the dew tray 13 for collecting the dew condensation water from the heat exchanger 9.
The water flowing down to 3 is drained to the outside through a drainage pipe (not shown) connected to a drainage pipe connecting portion 14 provided on one side of the lower part of the dew tray 13 in this embodiment. In order to prevent the drainage port of the drainage pipe connecting part 14 from being clogged for some reason, drainage by the drainage pipe becomes impossible, and the water accumulated in the dew tray 13 overflows from an unspecified position. 15 A recess 16 is provided at the center of the upper end to allow overflow water to flow down, while a water passage hole 17 is provided at a lower position of the tip of the dew tray located below the recess 16 to allow overflow water flowing down from the recess 16 to flow forward of the outlet 6. It is designed to be dropped.

With such a structure, the overflow can be noticed more quickly, and the running of water to the electrical equipment can be prevented. Further, although not shown in the drawings, an overflow detecting means including, for example, a humidity sensor is provided in the lower front portion of the concave portion 16,
When the overflow is detected, if the overflow is informed by an annunciation means such as an indicator light, and the operation is automatically stopped, the damage caused by the overflow can be further reduced. Although the indoor unit is also provided with the dew tray 18 on the upper rear surface of the air passage 7, the dew condensation water flowing down to the dew tray 18 is a water channel (not shown) formed on the outer surface of the side wall of the air passage 7. It is made to flow down to the dew tray 13 at the lower front part via the.

[0009]

EFFECTS OF THE INVENTION With the indoor unit as described above, it is possible to quickly find the overflow water from the indoor unit, which helps to minimize the damage, and the position of the overflow water is limited, which may affect the electrical components. Since it is not present, electrical safety is improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of an indoor unit according to the present invention.

FIG. 2 is a side sectional view of an indoor unit showing one embodiment of the present invention.

FIG. 3 is an enlarged perspective view of an essential part showing an embodiment of the present invention.

FIG. 4 is an internal configuration diagram of an indoor unit showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 5 Suction port 6 Air outlet 7 Air passage 8 Air filter 9 Heat exchanger 10 Blower fan 11 Airflow direction plate 12 Airflow direction plate 13 Dew tray 14 Drain pipe connection part 15 Rib 16 Recess 17 Water passage hole 18 Dew tray

Claims (3)

[Claims] 1. A heat exchanger, and an air blower for sending air, which has been heat-exchanged by the heat exchanger, to an air passage connecting a suction port at an upper part of the housing and an air outlet at a lower part of the housing. A dew tray serving as a top plate of the air outlet is provided below the heat exchanger to collect condensed water flowing down from the heat exchanger and is connected to a drain pipe connection portion of the dew tray. In an indoor unit of an air conditioner configured to drain to the outside through a drain pipe, a recess for letting the overflow water flow down is provided at the center of the upper end of the rib of the dew tray, while at the low position of the tip of the dew tray located below the recess. An indoor unit for an air conditioner, characterized in that a water passage hole is provided so that overflow water flowing down from the recess is dropped in front of the air outlet. 2. The indoor unit for an air conditioner according to claim 1, wherein an overflow detection unit is provided at a lower front portion of the recess, and when the overflow is detected, the notification unit notifies the overflow. 3. The indoor unit for an air conditioner according to claim 1, wherein when the overflow is detected by the overflow detecting means, the operation is stopped.