JP2001254968A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent water from leaking from a drain pan. SOLUTION: An air conditioner is provided with a heat exchanger 5a in a casing 1 having an inlet and an outlet formed in a front face thereof and the drain pan 6 below the heat exchanger 5a. A pair of supporting legs 10 are protruded on both ends of the drain pan 6 and a pair of bolts 14, 17 are screwed in the casing 1 through through-holes 12, 15 penetrating the supporting legs 10 and the through hole 15 penetrated by the left side bolt 17 is formed in a circular shape and the through hole 12 penetrated by the right bolt 14 is formed in an elliptical shape so that the drain pan 6 can be swung about the left side bolt 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner in which water does not leak from a drain pan.

[0002]

2. Description of the Related Art A conventional air conditioner is disclosed in
There is one described in 1-94285. This is an indoor unit of an air conditioner, and has a housing 1 composed of both front and rear frame portions 1A and 1B connected to each other, as shown in FIGS. An intake port 2a is formed in a front panel 2 openably and closably mounted on an upper front surface of the portion 1A, and an air outlet 1a is formed in a lower front portion of the front frame portion 1A. An engagement hole 1b is formed on the rear surface, and the engagement hole 1b is engaged with an engagement piece 3a of a mounting plate 3 fixed to the building frame 4 to form the housing 1
Are fixed to the building frame 4. In addition, a heat exchanger 5a and a fan 5b are arranged in the housing 1, and a drain pan 6 is provided below the heat exchanger 5 integrally with the housing 1.
Drainage ports 6 a and 6 b are provided at both left and right ends of the drain pan 6, and one of the drainage ports 6 facing the pipe hole 4 a of the building frame 4.
a is connected to the drain pipe 7 and the other drain port 6b
Plug 8 is connected to the other end, and the other drain port 6b is closed.

The procedure for installing the casing 1 will be described. When the drain pipe 7 is connected to one drain port 6a, the mounting plate 3 is fixed to the building frame 4 with the mounting plate 3 slightly inclined to the right in accordance with the connection. Then, by engaging the engagement hole 1b of the rear frame portion 1B with the engagement piece 3a of the installation plate 3, FIG.
As shown in (a), the installation angle of the housing 1 is set to a slight inclination angle α (about 5 °) from the horizontal line A, and
Is fixed to the building frame 4 such that one drain port 5a is on the lower side. Thereby, the drain water W is located on the right side of the drain pan 6.
And can be smoothly drained from one drain port 6a through the drain pipe 7.

[0004]

In the above-mentioned conventional configuration,
Since the mounting plate 3 is slightly inclined rightward or leftward in accordance with the connection position of the drain pipe 7, the direction of the inclination can be easily mistaken. Therefore, as shown in FIG. 7B, when the housing 1 is inclined from the horizontal line A at a slight inclination angle β and fixed to the building frame 4 so that the other drain port 6b is on the lower side, the housing 1 Drain water W accumulates on the left side of the drain pan 6 fixed to the body 1.

In this case, since the other drain port 6b is closed by the plug 8, no water leakage occurs at the beginning of the installation of the air conditioner. May deviate from the other drain port 6b and cause water leakage (see the virtual line in FIG. 7B).

Accordingly, based on the technology described in Japanese Patent Application Laid-Open No. 10-274422, a fulcrum 6c is provided at the center of the lower surface of the drain pan 6 as shown in FIG. The drain pan 6 is formed so as to be rotatable, and the drain pan 6 is inclined by connecting the drain pipe 7 to one drain port 6a (or the other drain port 6b) so that the one drain port 6a is on the lower side. Conceivable.

According to the above configuration, the drain pan 6 is rotated in the opposite direction due to elongation or vibration of the drain pipe 7 due to a temperature change, and the drain pan 6 is tilted so that the other drain port 6b is on the lower side. As a result, drain water accumulates on the left side of the drain pan 6, and if the plug 8 is removed in this state, water leaks from the other drain port 6b.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide an air conditioner in which water does not leak from a drain pan.

[0009]

According to a first aspect of the present invention, a heat exchanger is provided in a housing having an intake port and a blow port formed on a front surface thereof. In the air conditioner provided with a drain pan below the drain pan, both ends of the drain pan are fastened to the housing by a pair of fasteners, and the drain pan is centered on both fasteners or one of the fasteners. Are formed to be swingable.

In the above configuration, when the installation angle of the housing is wrong, the fastening of the both ends of the drain pan is slightly loosened, the posture of the drain pan is corrected by swinging the drain pan, and then slightly loosened. The fastening may be retightened.

In this case, even if the installation angle of the housing is wrong, the posture can be easily corrected by swinging the drain pan to prevent water leakage from the drain pan. In addition, since the fastener for fastening the drain pan to the housing also serves as the swing center of the drain pan, the configuration is simple and the manufacturing cost is low.

According to a second aspect of the present invention, in the first aspect, the one fastener is fastened to the housing through a circular through hole formed through one end of a drain pan, and the other fastener is fastened to the housing. Is fastened to the housing through an elongated through hole penetrating the other end of the drain pan, and the drain pan is formed so as to be swingable around the one fastener. It is characterized by having.

According to the above construction, the posture of the drain pan can be easily corrected only by swinging the drain pan around one of the fasteners, and the posture can be adjusted only by tightening the two fasteners. The corrected drain pan can be firmly fixed to the housing.

According to a third aspect of the present invention, in the first aspect of the present invention, the pair of fasteners are fastened to the housing through elongated holes formed at both ends of the drain pan. The drain pan is formed so as to be swingable about one of the fasteners.

According to the above construction, the posture of the drain pan can be easily corrected only by swinging the drain pan around one of the two fasteners, and only by tightening the two fasteners. The drain pan whose posture has been corrected can be firmly fixed to the housing, which is convenient.

According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, a level is attached to the drain pan.

According to the above configuration, it is possible to easily confirm whether or not the posture of the drain pan is correct by the level attached to the drain pan.

[0018]

1 and 2 show an indoor unit of an air conditioner according to an embodiment of the present invention, in which an extended portion 10a extending rearward from both ends of a drain pan 6 is provided. The support portion 10 which is bent outward at a right angle from the extension portion 10a
b, and a pair of substantially L-shaped receiving frames 11 protrude from a rear frame portion 1B of the housing 1 so as to face each of the supporting legs 10 to support the right side. Support part 10b of leg 10
A screw (fixing device) 14 is fixed to a screw hole 13 penetrating the right receiving frame 11 through a long hole-shaped through hole 12 penetrating through the hole, and a circular shape penetrating the supporting portion 10 b of the left supporting leg 10. Through hole 1
A screw (fixing device) 17 is fixed to a screw hole 16 penetrating the left receiving frame 11 through 5, and a level 18 is fixed to the center of the front surface of the drain pan 6. Since the configuration other than the above is almost the same as the conventional example shown in FIGS. 5 and 6, the same portions are denoted by the same reference numerals and description thereof is omitted.

The procedure for installing the casing 1 is almost the same as that of the conventional case. Only the differences will be described. As shown in FIG. 3A, the casing 1 is installed with the drain pipe 7 connected to one drain port 6a. When the housing 1 is inclined at a slight inclination angle β from the horizontal line A and fixed to the building frame 4 such that the other drain port 6b is on the lower side by making the wrong inclination angle of the plate 3, the front panel 2 After opening and loosening both screws 14 and 17 slightly from the gap between the housing 1 and the heat exchanger 5, FIG.
As shown in (b), the drain pan 6 is swung downward around the left screw 17 to incline the drain pan 6 so that one drain port 6a is on the lower side. Then, both screws 14 and 17 may be tightened again.

Contrary to the above, in the state where the drain pipe 7 is connected to the other drain port 6b, the inclination angle of the mounting plate 3 is mistaken so that the casing 1 can be positioned such that one drain port 6a is on the lower side. When fixed to the building frame 4, the two screws 14,1
After loosening 7 slightly, drain pan 6
Is swung upward to incline the drain pan 6 so that the other drain port 6b is on the lower side, and the screws 14 and 17 are tightened again.

According to the above configuration, the front panel 2 is opened, and the screws 14 and 17 can be easily operated from the front of the housing 1. In addition, by swinging the drain pan 6 around the left screw 17, the posture can be easily corrected. Further, even if the plug 8 is detached from the other drain port 6b with the posture of the drain pan 6 corrected as shown in FIG. 3B, it is possible to prevent water from leaking from the drain pan 6. Furthermore, since the left screw 17 also serves as the swing center of the drain pan 6, the configuration is simple and the manufacturing cost is low. In addition, the level 18 can easily confirm whether the position of the drain pan 6 is correct.

In the above embodiment, the elongated through hole 12 is formed in the support portion 10b of the right support leg 10, and the circular through hole 15 is formed in the support portion 10b of the left support leg 10. As shown in FIG. 4, both the through holes 12 and 15 may be formed in a long hole shape.

According to the above configuration, substantially the same effect as that of the embodiment shown in FIGS. 1 and 2 can be obtained.
The posture of the drain pan 6 can be easily adjusted only by swinging the drain pan 6 around one of the two screws 14 and 17 fixed to the housing 1 through both the elongated through holes 12 and 15. It can be modified and is easy to use.

[0024]

According to the first aspect of the present invention, even if the installation angle of the casing is wrong, the posture is easily corrected by swinging the drain pan so that water does not leak from the drain pan. Can be In addition, since the fastener for fastening the drain pan to the housing also serves as the swing center of the drain pan, the configuration is simple and the manufacturing cost is low.

According to the second aspect of the present invention, the posture of the drain pan can be easily corrected only by swinging the drain pan around one of the fasteners, and only the two fasteners are tightened. Thus, the drain pan whose posture has been corrected can be firmly fixed to the housing.

According to the third aspect of the present invention, only by swinging the drain pan around one of the two fasteners,
The posture of the drain pan can be easily corrected, and the drain pan whose posture has been corrected can be firmly fixed to the housing by simply tightening both the fastenings, and the usability is good.

According to the fourth aspect of the present invention, it is possible to easily confirm whether or not the posture of the drain pan is correct by the level attached to the drain pan.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an indoor unit of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a perspective view of the drain pan.

FIG. 3A is a schematic front view of a state in which a housing is incorrectly installed, and FIG. 3B is a schematic front view of a state in which a posture of a drain pan is corrected.

FIG. 4 is a schematic front view showing a modified example of the drain pan.

FIG. 5 is a partially cutaway side view showing an indoor unit of a conventional air conditioner.

FIG. 6 is a perspective view of the indoor unit.

FIG. 7A is a schematic front view of a state in which a housing is properly installed, and FIG. 7B is a schematic front view of a state in which the housing is incorrectly installed.

FIG. 8 is a schematic front view showing a modification of a conventional drain pan.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 housing 1a blower port 2a intake port 5a heat exchanger 6 drain pan 6a one drain port 6b the other drain port 12 through hole 14 screw (fastener) 15 through hole 17 screw (fastener) 18 level

Claims (4)

[Claims] 1. An air conditioner having a heat exchanger disposed in a housing having an intake port and a blow port formed on a front surface thereof, and a drain pan provided below the heat exchanger, wherein both ends of the drain pan are provided. An air conditioner characterized by being fixed to the housing by a pair of fasteners, and wherein the drain pan is swingable about both fasteners or one of the fasteners. 2. The one fastener is fastened to the housing through a circular through-hole penetrating through one end of the drain pan, and the other fastener is fitted through the other end of the drain pan. 2. The air conditioner according to claim 1, wherein the air conditioner is fixed to the housing through an elongated through-hole, and a drain pan is swingable around the one fastener. 3. . 3. The drain pan according to claim 1, wherein the pair of fasteners are fastened to the housing through elongated through-holes penetrating both ends of the drain pan. The air conditioner according to claim 1, wherein the air conditioner is formed to be swingable. 4. The air conditioner according to claim 1, wherein a level is attached to the drain pan.