JPH0116983Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a drain drainage structure for an air conditioner that drains dehumidified water generated from an evaporator to the outside through a bottom plate.

[Technical background of the invention and its problems]

For window-type air conditioners, a drain pipe a should be installed on the side wall of the bottom plate where the evaporator is installed, as shown in Figure 10, to drain the dehumidified water accumulated on the bottom plate b to the outside. is being carried out. Generally, such a drain structure has a connection part provided at the end of the drain pipe a, and a drain hole provided in the side wall of the bottom plate b.

There are various structures of this type, and among them, one that has been used in the past is one that uses a divided insertion cylinder as a connection part.

Conventionally, this drainage structure has a fixing seat d provided at the end of the pipe c as shown in FIG. A drain pipe a with a plurality of divided insertion cylinders e protruding from the drain pipe a is used, and a ring-shaped packing g is inserted into the insertion cylinder e of the drain drainage pipe a, and the insertion cylinder e is used to drain the drain. By removably fitting it into the drain hole, the 11th
As shown in the figure, connect the drain pipe a to the insertion cylinder e.
The elastic displacement of the drain hole h is used to engage and fix the drain hole h, and a packing g is also interposed between the side wall of the bottom plate b and the fixing seat d to seal the drain drain pipe a. There is.

By the way, in such a drain drainage structure, it is important to always obtain high sealing performance.

However, according to the drain drainage structure using the above-mentioned insertion cylinder e, as shown in FIG. 13, the divided pieces j, j of the insertion cylinder e are separated from each other until reaching the fixed seat d. Therefore, even if the packing g is externally fitted onto the insertion cylinder e, the problem arises as to why the seal between the divided pieces j and j, that is, the seal between the fixed seat d and the side wall of the bottom plate b, is incomplete. There is. In other words, because the divided pieces j and j are separated, when the packing g is externally fitted and assembled into the insertion cylinder e, the normal mounting position of the packing g may be shifted at the separated part, or even the packing g itself may be damaged. may become deformed or distorted. For this reason, the sealing performance at the connection surface between the fixed seat d and the side wall of the bottom plate b is impaired, resulting in the inconvenience of water leakage.

[Purpose of invention]

This idea was devised by paying attention to the above-mentioned circumstances, and its purpose is to prevent the gasket from shifting, as well as from deforming and distorting the gasket, so that it can maintain a high level of sealing performance at all times. The purpose is to provide a drainage structure.

[Summary of the idea]

That is, in this invention, a convex wall is provided on the plate surface of the fixed seat of the drain pipe, which is located at each spaced apart part of the insertion cylinder, and is continuous with the divided pieces of the insertion cylinder and follows the external shape of the insertion cylinder. By protruding,
The purpose is to avoid misalignment, deformation, and distortion of the gasket by allowing the gasket to be placed at a proper mounting position without displacement using the insertion cylinder and the wall of the convex portion as guides.

[Example of idea]

This invention will be explained below based on an embodiment shown in FIGS. 1 to 5. FIG. 2 shows a window-type air conditioner to which this invention is applied, where 1 is a bottom plate and 2 is a cabinet provided on the bottom plate 1. A partition plate 3 is erected on the bottom plate 1 at the center thereof, and divides the inside of the cabinet 2 into an indoor side 4.
It is divided into an outdoor area 5 and an outdoor area 5. Further, on the indoor side 4 formed on the front side of the cabinet 1, an indoor heat exchanger 7 (evaporator) is provided opposite to the suction port 6 formed on the front side. An indoor fan 8 is disposed inside the heat exchanger 7. Further, on the indoor side 4, an indoor fan casing 10 is installed so that the air outlet 9 formed on the front surface of the cabinet 2 and the suction port 6 communicate with each other through the indoor heat exchanger 7 and the indoor fan 8. is provided so that indoor air can be heat exchanged with the indoor heat exchanger 7. On the other hand, an outdoor heat exchanger 12 is provided on the outdoor side 5 formed on the rear side of the cabinet 2, facing the suction port 11 provided on the rear side of the cabinet 2. An outdoor fan 13 is disposed inside the heat exchanger 12, and allows heat exchange of outside air with the outdoor heat exchanger 12 using a heat exchanger cover 14 and an outdoor fan casing 15 as guides. . Although not shown, each of the heat exchangers 7 and 12 is connected to a compressor and a pressure reducing device, so that cooling can be performed by operating a refrigeration cycle. Note that 13 is a fan motor.

A drain drainage structure 16 for draining the dehumidified water accumulated on the bottom plate 1 to the outside is provided on the rear side wall 1a of the bottom plate 1 of the air conditioner configured as described above, and the structure of this drain drainage structure 16 is as follows. is the first
3 and 4.

Here, the drain structure 16 will be described. 18 is a drain hole provided in the side wall 1a of the bottom plate 1, and 19 is an elbow-shaped drain pipe made of synthetic resin such as plastic. The drain pipe 19 is an L-shaped pipe 2.
A disk-shaped fixing seat 22 is integrally provided at one end of the fixing seat 22, and a plurality of insertion cylinders 24, which are divided in the radial direction, are protruded from the plate surface of the fixing seat 22. A convex wall 25, which is the essential part of this invention, is provided on the plate surface of the fixed seat 22. The convex wall 25 is located at each spaced apart portion of the insertion tube 24, and has a height of about 1 mm to 2 mm, for example.
The fixed seat 22 is arranged so as to be continuous with each of the divided pieces 24a, 24a of 4 and to follow the outer shape of the insertion cylinder 24.
It is constructed by protruding integrally from the plate surface of. and,
As shown in FIG. 5 on the outer periphery of this insertion cylinder 24,
A ring-shaped convex portion 26a is formed on the joint surface side with respect to the bottom plate 1.
A ring-shaped packing 26 having a shape formed thereon is fitted onto the outside. Further, an engaging claw 27 is provided at the tip of each divided piece 24a, 24a of the insertion cylinder 24, and by inserting the insertion cylinder 24 toward the drain hole 18, each divided piece 24a, Based on the elastic displacement of 24a, it engages with the side wall 1a of the bottom plate 1, making it possible to connect the side wall 1a and the fixed seat 22 with the gasket 20 interposed therebetween. 1 shows the entire drain pipe 19, FIG. 4 shows the front and side faces of the drain pipe 19, and FIG. 5 shows a cross section of the gasket 20.

Therefore, in the above-described configuration, when connecting the drain drain pipe 19 to the drain drain hole 18, first, the insertion cylinder 24 of the drain drain pipe 19 is connected to the drain drain hole 18.
Insert the packing 20 on top. Here, conventionally, due to the separation between the divided pieces of the insertion cylinder from the tip to the rear end, if the seal is misaligned, deformed, or distorted, and the seal becomes incomplete. However, according to this invention, the packing 20 has divided pieces 24a, 24.
a and the convex walls 25, 25 and the insertion cylinder 2
Since the seal 20 can be inserted using the entire circumference of No. 4 as a guide for attaching the seal,
The packing 20 can be attached to the base side of the insertion cylinder 24, which is the normal position, without causing any displacement. Moreover, since the entire inner circumference of the packing 20 is always guided and assembled by the convex walls 25, 25 and the respective divided pieces 24a, 24a arranged on the inner diameter, deformation of the packing 20 itself, which conventionally occurs at the separated parts, is caused. Also, divide the distortion into pieces 24
This can be resolved by the regulations set by a and 24a.

Therefore, the insertion cylinder 24 with the gasket 20 assembled is inserted into the drain hole 18 of the side wall 1a, and the engaging claw 2 is inserted into the drain hole 18 of the side wall 1a.
If it is fixed to the drain hole 18 by engagement by 7 and 27, it is possible to realize a highly reliable connection with perfect sealing performance without the risk of water leakage as shown in FIG. Become. Moreover, the packing 20 can be assembled into the proper position by simply inserting the convex wall 25 into the guide, so there is an advantage that the assembly is easier than in the past. Furthermore, by forming the ring-shaped convex portion 26a on the surface of the packing 20 that contacts the side wall 1a, even greater sealing performance can be obtained.

6 to 9 show another embodiment, in which dehumidified water (drain water) from an indoor heat exchanger (evaporator) 30 is stored on a bottom plate 32, and the dehumidified water is transferred to an outdoor side. Propeller fan 33 that makes up the fan
The outdoor heat exchanger (condenser) 34 uses the rotation of
In the device in which the condensation (heat radiation) effect in the outdoor heat exchanger 34 is enhanced by scattering the
Eliminate the damage caused by the dehumidified water that leaks from the joint surface between the cover 35 of the outdoor heat exchanger 34 and the outdoor fan case 36, flows through the outdoor fan case 36, and flows down to the propeller fan 33 among the scattered dehumidified water. This is what I did. Here, harm is caused by contact with the propeller fan 33 or wind pressure to the indoor side 37 or from the outdoor side 38 to the suction port 39 of the outdoor side 38.
Dehumidified water is scattered outside through propeller fan 3
In addition to the generation of abnormal sounds (noise) due to the contact described in item 3, dehumidifying water cannot be used effectively.
In order to solve this problem, a protrusion 40 as shown in FIG.
As shown in FIG.
For example, the upper part has a semicircular shape along the outer periphery of the bell mouth part 41, and the lower part has a shape that descends linearly along the vertical direction, and protrudes toward the outdoor side 38. It is designed to do so. In this way, by applying the protrusion 40 provided,
Dehumidified water traveling along the outdoor side fan case 36, which causes it to scatter to the indoor side 37 and the outdoor side 38, is guided by the protrusion 40 and is collected on the bottom plate 32 without reaching the propeller fan 33. become,
This makes it possible to solve the above problems with a simple structure. In addition, in the drawing, 41 is a partition plate, and 42 is a compressor.

[Effect of idea]

As explained above, according to this invention, the packing can be reliably placed in the correct mounting position without deviation using the insertion cylinder and the convex wall as a guide. In addition, it becomes possible to eliminate distortion.

Therefore, it is possible to realize a highly reliable connection without worrying about water leakage. Furthermore, the packing is assembled into the proper position by simply inserting the convex wall into the guide, so there is an advantage that ease of assembly is improved.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of this invention, Figure 1 is a perspective view showing a drain pipe which is the main part of this invention, and Figure 2 shows an air conditioner to which this invention is applied. Side sectional view, Figure 3 is a side sectional view showing the connection state of the drain drainage pipe, Figure 4 a, b
are the front and side views of the drain pipe, No. 5
The figure is a sectional view showing the packing, Figures 6 to 9 show another embodiment, Figure 6 is a plan view of the air conditioner, Figure 7 is a side sectional view thereof, and Figure 8 is an outdoor fan. FIG. 9 is a sectional view showing the protrusions provided on the outdoor side fan casing, FIGS. 10 to 13 show the drain drainage structure of a conventional air conditioner, and FIG. 10 shows the drain drainage structure. FIG. 11 is a side sectional view showing the connection state of the drain pipe, FIG. 12 is a perspective view showing the drain pipe, and FIG. 13 is a front view of the insertion cylinder. It is. 1...Bottom plate, 7...Indoor heat exchanger (evaporator),
18...Drain drain hole, 19...Drain drain pipe, 20...Packing, 21...Pipe, 22...
... Fixed seat, 24 ... Insertion cylinder body, 24a ... Division piece, 25 ... Convex wall, 27 ... Engagement claw.

Claims (1)

[Scope of utility model registration request] A drain hole is provided on the side wall of the bottom plate where the evaporator is installed, a fixing seat is provided at the end of the pipe, and the plate surface of the fixing seat is equipped with an engaging claw at the tip, and is divided into multiple parts in the radial direction. A drain drain pipe is provided with a protruding insertion cylinder, and a ring-shaped gasket is inserted into the insertion cylinder, and the insertion cylinder is removably inserted into the drain hole to drain the drain. In a drain drainage structure for an air conditioner in which the pipe is engaged and fixed in the drain hole while being sealed with a gasket, a drain pipe is provided at each spaced apart portion of the insertion cylinder on the plate surface of the fixing seat of the drain drain pipe. A drain drainage structure for an air conditioner, characterized in that a convex wall that is continuous with the divided pieces of the insertion cylinder and follows the external shape of the insertion cylinder is provided.