JPH10227473A - Drain pan mechanism for air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge drain surely while simplifying the fixing work of drain hose by making a drain hose fixing port at one central part while inclining from the opposite sides toward the center such that the central part of the bottom face of a drain pan is located at a lowest position. SOLUTION: A drain pan 13 is formed such that the bottom part 131 thereof inclines from the opposite sides toward the center and the central part thereof is located at a lowest position and a drain hose fixing port 133 is made at one central part thereof. Since a drain hose 14 can be drawn out in any direction, refixing work of drain hose 14 is not required and drawing work of drain hose 14 can be simplified. Furthermore, drain can be discharged stably even when the entire indoor unit is installed while inclining, because the bottom face 131 of the drain pan 13 is inclined to collect the drain positively to the center.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pan mechanism of an air conditioner for receiving drain generated in a heat exchanger and discharging the drain to the outside via a drain hose.

[0002]

2. Description of the Related Art Recently, air conditioners represented by so-called air conditioners have been remarkably popularized, and many air conditioners have been installed in homes.

An air conditioner is composed of an indoor unit for blowing air for cooling and heating and an outdoor unit for generating a heat source required for cooling and heating.

Conventionally, as an indoor unit, as shown in FIG. 3, a unit body 3 is constituted by a base 1 and a front panel 2 including a suction grille. Heat exchanger 4 divided into three parts corresponding to air suction ports 21 and 22 on the upper surface
1, 42 and 43 are installed. These heat exchangers 41,
A filter guide 7 for mounting the air filter 5 and the clean filter 6 is provided between 42 and 43 and the front panel 2 including the suction grille. Further, the cross flow fan 8 is arranged inside the heat exchangers 41, 42, 43, and the heat exchanger 4 is rotated by the rotation of the cross flow fan 8.
The air for cooling and heating generated in step (1) is blown out from the air outlet 23 below the front panel 2.

Further, below the heat exchangers 41 and 42,
A drain pan 9 for receiving drain generated in the heat exchanger 4 is arranged. The drain pan 9 discharges the collected drain to the outside of the unit via a drain hose 10 described later. In this case, drain pan 9
As shown in FIG. 4, side walls 92, 92 inclined along both sides in the longitudinal direction of a horizontal bottom surface 91 are formed, and a drain hose mounting port 93 is provided at each end of one of the side walls 92. . Then, depending on the direction in which the drain hose 10 is pulled out, the worker selects one of the drain hose mounting ports 93 on both sides to connect the drain hose 10.

The louver 12 is provided in the air outlet 23 below the front panel 2. The louver 12 is for changing the direction of the air blown out from the air blowout port 23 up, down, left and right.

Although the drain pan 11 is also arranged below the heat exchanger 43, structurally, the above-described drain pan 9 is used.
The description is omitted here.

[0008]

However, the drain pan 9 of the indoor unit constructed as described above can be used by selecting the drain hose mounting ports 93 provided at both ends depending on the drawing direction of the drain hose 10. However, depending on the direction in which the drain hose 10 is pulled out, a worker must replace the drain hose 10 with the drain hose mounting port 93 each time, which is rather troublesome. If the drain hose mounting port 93 not connected to the drain hose 10 is not securely sealed, the drain may leak. In addition, since the bottom surface of the drain pan 9 is horizontal, it is necessary to adjust the installation state of the drain pan 9 so that it is always horizontal. Drain hose attachment port 93 to which drain hose 10 of drain pan 9 is connected
If the side becomes higher, there is a problem that drain cannot be discharged stably.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drain pan mechanism of an air conditioner in which a drain hose can be easily attached and drain can be reliably discharged.

[0010]

According to the first aspect of the present invention,
A heat exchanger and a fan are arranged in a horizontally long rectangular casing provided with an air inlet at the front and an air outlet at the bottom, and a drain generated by the heat exchanger at a lower portion of the heat exchanger, In an air conditioner equipped with a drain pan for discharging to the outside via a drain hose, the bottom of the drain pan is inclined from both ends toward the center so that the center is located at the lowest position, and The drain hose mounting port is provided in one part of the part.

According to a second aspect of the present invention, in the first aspect, the bottom surface of the drain pan is also inclined with respect to the drain hose mounting port side.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of an indoor unit of an air conditioner to which the present invention is applied, and the same parts as those in FIG. 3 are denoted by the same reference numerals.

In this case, a drain pan 13 for receiving the drain generated in the heat exchangers 4 is arranged below the heat exchangers 41 and 42. The drain pan 13 is for discharging the collected drain to the outside of the unit via a drain hose 12 described later.

In this drain pan 13, as shown in FIG. 2A, a bottom surface 131 sandwiched between side walls 132, 132 is gradually inclined from both ends to a central portion, and the central portion is located at the lowest position. The drain is collected in this central part. In addition, a drain hose attachment port 133 is formed at the base end of one side wall 132 at the center located at the lowest position of the bottom 131, and FIG.
As shown in the figure, the entire drain pan 13 is also inclined by θ with respect to the
The drain collected at the center of the nozzle is further passed to the drain hose mounting port 133 side.

The drain hose 14 is connected to the drain hose mounting port 133 of the drain pan 13.

Although the drain pan 15 is also arranged below the heat exchanger 43, the structure is the same as that of the above-described drain pan 13, and the description is omitted here.

With such a configuration, the drain pan 13 disposed below the heat exchangers 41 and 42 has its bottom surface 131 gradually inclined from both ends toward the center, and the center is most inclined. It is formed so as to be located at a lower position, and furthermore, since the entire drain pan 13 is inclined with respect to the drain hose mounting port 133 side, the heat exchanger 41,
When drain is generated at 42 and falls into the drain pan 13, the drain is collected at the center along the bottom 131 surface due to the inclination of the bottom 131 of the drain pan 13, and further,
Due to the inclination to the drain hose mounting port 133 side, the water flows to the drain hose mounting port 133 side, and is discharged from the drain hose mounting port 133 to the outside of the unit through the drain hose 14.

Therefore, in this case, the drain pan 1
3 is formed such that the bottom portion 131 is inclined from both ends to the center portion so that the center portion is located at the lowest position, and a drain hose attachment port 133 is provided at one position in the center portion of the drain pan 13. So that one of the drain hose attachment ports is selected according to the direction in which the drain hose 14 is pulled out, such as a conventional one in which drain hose attachment ports are provided at two places at both ends of the drain pan, It is possible to cope with the pull-out direction, whereby the replacement work of the drain hose 14 and the like can be eliminated, and the drain hose 14 can be easily taken out. Also, since it is not necessary to seal the drain hose installation port without connecting the conventional drain hose,
Drain leakage accidents can also be prevented.

The drain pan 13 has a bottom 131
An inclined surface is formed so that the drain is actively collected in the center, so even if the entire indoor unit is installed inclined, the drain is stably collected at the drain hose installation port. , Can be discharged.

Further, the entire drain pan 13 is inclined toward the drain hose mounting port 133 side so that the drain collected at the center can easily flow toward the drain hose mounting port side, so that drainage can be further improved.

[0022]

As described above, according to the present invention, the bottom surface of the drain pan is inclined from both ends to the central portion so that the central portion is located at the lowest position, and the drain pan is located at one position in the central portion. Since the drain hose mounting port is provided, it is possible to cope with any draw-out direction of the drain hose, so that there is no need to replace the drain hose or the like, and the removal work can be simplified. In addition, the drain pan bottom is formed with an inclined surface, and the drain is actively collected at the center of the bottom surface.If the entire indoor unit is installed at an angle, the drain is connected to the drain hose mounting port. Can be collected and discharged.

Also, the drain pan is inclined with respect to the drain hose mounting port side so that the drain collected at the center of the bottom can easily flow to the drain hose mounting port side. be able to.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a diagram showing a schematic configuration of a drain pan used in one embodiment.

FIG. 3 is a diagram showing a schematic configuration of an indoor unit of a conventional air conditioner.

FIG. 4 is a diagram showing a schematic configuration of a drain pan used in a conventional indoor unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Front panel, 21 and 22 ... Air suction port, 23 ... Air outlet, 3 ... Unit body, 41, 42, 43 ... Heat exchanger, 5 ... Air filter, 6 ... Clean filter, 7 ... Filter Guide: 8: Cross flow fan, 12: Louver, 13: Drain pan, 131: Bottom surface, 132: Side wall, 133: Hose mounting port, 14: Drain hose, 15: Drain pan.

Continued on the front page (72) Inventor Yasuo Katayama 3-chome, Asahicho, Nishibiwajima-cho, Nishi-Kasugai-gun, Aichi Prefecture Mitsubishi Heavy Industries, Ltd. Air Conditioning Works

Claims (2)

[Claims] 1. A heat exchanger and a fan are arranged in a horizontally-long rectangular casing having an air inlet at the front and an air outlet at the bottom, and generated by the heat exchanger below the heat exchanger. An air conditioner equipped with a drain pan for receiving the drain and discharging it to the outside via a drain hose, the bottom surface of the drain pan is inclined from both ends toward the center so that the center is located at the lowest position. A drain pan mechanism for the air conditioner, wherein the drain hose mounting port is provided at one location in the center. 2. The drain pan mechanism for an air conditioner according to claim 1, wherein a bottom surface of the drain pan is also inclined with respect to the drain hose mounting port side.