JPH11237081A - Outdoor unit for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform the work for connecting one or the other drain outlet with a drain hose easily from the indoor side by connecting the drain outlet through a connecting pipe and fitting a stop valve to the other or one drain outlet. SOLUTION: One or the other drain outlet 1a made in front and rear of a base 1 is connected with a drain hose 13 through a connecting pipe 15 and a stop valve is fitted to the other or one drain outlet 1a. Consequently, the drain hose 13 can be connected with the drain outlet 1a through the connecting pipe 15 from the indoor side even when an air conditioner mounting base is not provided with a drainage part. Since the connecting pipe 15 has a part being stopped at the drain outlet 1a, a protruding part 15e to be fitted with the drain hose 13, and a hole part 15d and formed substantially tubularly while exhibiting resiliency, the connecting pipe 15 can be stopped easily at the drain outlet 1a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit of an air conditioner, and more particularly, to a connection valve mounting plate on which a connection valve for connecting a connection pipe is mounted on a front side,
The present invention relates to a structure in which drain holes connected to a drain hose are provided before and after a berth, so that an operation of connecting the connection pipe and the drain hose can be easily performed even from the indoor side.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 1A and 1B, an air conditioner mounting table 51 and a roof are previously provided outside a house.
As shown in FIGS. 9 and 10, the outdoor unit 40 of the separation type air conditioner attached to the attachment window 50 of the air conditioner provided with 52 has a rear part of the base 1 having a drain hole to which a drain hose is connected. In addition, the outdoor heat exchanger 2, the propeller fan 3,
An electric component box 6 provided with a baffle plate 4 and a compressor 5 and an electric component box cover 6a on one front side, and connection valves 7 such as a two-way valve 7a and a three-way valve 7b on the other side. And a fan motor 8 for driving the propeller fan 3 is disposed at the center, and the base 1
A suction port 9a for sucking outdoor air into a side of the connection valve 7;
And the internal piping 10 to connect the piping 31 from the indoor unit 30
Is housed in an outer case 9 provided with an insertion hole 9b through which a sealing gasket 11 is inserted, and a front cover 12 is attached to the front surface of the outer case 9.

[0003] The internal piping 10 is packaged as an attached product separate from the outdoor unit main body.
The front cover 12 is removed, the internal pipe 10 is connected to the connection valve 7, and the sealing packing 11 is inserted into the insertion hole 9b.
And the pipe 31 from the indoor unit 30 was connected. On the other hand, the electric wire 32 from the indoor unit 30 is
9b through the sealing packing 11, insert the electrical component box cover 6a, connect it to the electrical component box 6, attach the electrical component box cover 6a again, and attach the front cover 12 again. I was trying to attach it.

However, in the above configuration, the indoor unit
Since the pipe connection of 30 is made on the side of the outer shell 9, the pipe
There was no flexibility in the operation of the 31 and not only the opening width of the mounting window 50 had to be widened but also there was a problem in workability.

In addition, the pipe 31 of the indoor unit 30 cannot be directly connected to the connection valve 7, and requires the internal pipe 10, the seal packing 11, etc., the number of parts is large, the cost of parts and construction work are large. The cost was high.

When a drain 51a is provided near the end of the air conditioner mounting table 51, the drain 51a is provided.
Correspondingly, by connecting the drain hose connected to the drain hole 1a provided at the rear part of the base 1, the drain water can be drained smoothly, but the drain part 51a is not provided. In this case, there is a problem that the work of drawing the drain hose connected to the drain hole 1a becomes difficult.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides a connection valve mounting plate on the front side, on which a connection valve for connecting a connection pipe is mounted, and a drain hole connected to a drain hose. It is an object of the present invention to provide an outdoor unit of an air conditioner that is provided before and after a base so that an operation of connecting the connection pipe and the drain hose can be easily performed even from the indoor side.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an outdoor heat exchanger at the rear of a base provided with drain holes to which drain hoses are connected or water stopcocks are provided. , A propeller fan with a slinger to lift up the drain water, and a baffle plate are placed, a recess is provided under the propeller fan to receive drain water, a compressor is provided on one side of the front part, and electrical components are provided on the other side. A box is mounted with a fan motor or the like for driving the propeller fan in the center, and in the center of the front end,
A connection valve for connecting a connection pipe from the indoor unit and a drainage tray for receiving dew water from the connection valve and drain water guided from the indoor unit by a drain drain pipe or the like protrude below the connection valve. A water guiding means for guiding the water of the drainage tray to the concave portion is provided, the bottom plate is opened forward and backward, and housed in an outer body provided with a suction port for sucking outdoor air on the side surface, and a front opening of the outer body, A front cover formed with a first notch hole corresponding to the connection valve and the drainage pan fixed to a connection valve fixture mounted on the front end of the base, and a second notch hole corresponding to the electrical component box; And an electrical component box cover covering the electrical component box is attached to the second cutout hole, and the drain hole is used to connect the drain hose to one or the other when draining one or the other. Insert a connecting pipe between the hole and the drain hose. With connection has a configuration so as to attach the other or stop cock to one of the drain holes.

Further, the connection pipe is provided with a locking portion for locking to the drain hole and a protruding portion for inserting the drain hose, and has a substantially cylindrical shape having elasticity. .

[0010] Further, the locking portion comprises a locking groove having a substantially concave cross section for locking the drainage hole, and flanges provided on both sides of the locking groove.

Further, the flange located on the opposite side of the projection is formed to have a slightly smaller outer shape than the flange located on the projection side.

Further, a flange located on the opposite side of the protruding portion is formed to have a tapered shape.

[0013] Further, the water stopcock is provided with a locking portion comprising a locking groove having a substantially concave cross section for locking the drainage hole, and flanges provided on both sides of the locking groove. It has a configuration formed as follows.

Further, one of the flanges constituting the locking portion of the water stopcock is formed to have a slightly smaller outer shape than the other flange.

Further, one of the flanges constituting the locking portion of the water stopcock is formed to have a tapered shape.

Further, the electrical component box is configured to open and face a second notch hole formed in the front cover.

Further, the electrical component box cover is provided with a protruding portion which protrudes to the front and has an opening formed below for inserting an electric wire.

Further, the water guide means is formed by extending the drain tray.

Further, the water guiding means is constituted by a water guiding groove for guiding drain water drained from the drain receiving tray to the recess at substantially the center of the base.

The drain tray is provided with a cylindrical drain port, and drain water in the drain tray is drained into the water guide groove.

The drain tray is provided with a downwardly inclined gutter so that drain water in the drain tray is drained into the water channel.

Further, the connection valve has a configuration in which an indoor piping connection portion is disposed upward and a valve opening / closing portion is disposed forward.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the drawings. Note that the description of the contents described in the above related art will be omitted to avoid duplication. 1 (A) and 1 (B)
FIG. 2, FIG. 3 (A) and FIG. 3 (B), and FIG.
(A) and FIG. 4 (B), FIG. 5, FIG. 6, and FIG.
7 (A), FIG. 7 (B), and FIG. 8, reference numeral 1 denotes a base constituting an outdoor unit 40 of a separation type air conditioner, 1a is provided before and after the base 1, and at least one of the drain hoses 13 Drain holes for draining drain water by connecting
Is an outdoor heat exchanger mounted on the rear of the base 1, 3 is a propeller fan with a slinger ring 3a, and 4 is a baffle plate. A recess 20 for receiving drain water is provided below the propeller fan 3 with the slinger ring 3a, and the water accumulated in the recess 20 is swept up by the slinger ring 3a and blown to the outdoor heat exchanger 2. It has a configuration.

A compressor 5 is provided on one side of the front part of the base 1 having the drainage holes 1a at the front and rear, an electrical component box 6 having an open front side on the other side, and the propeller fan A two-way valve 7a, a three-way valve 7b for connecting a pipe from the indoor unit 30 to the center of the front end portion,
And a drainage tray 21 that receives the condensed water from the connection valve 7 and the drainage water guided from the indoor unit 30 by the drainage drain pipe 33 and the like below the connection valve 7. The structure is such that the water in the drainage tray 21 is guided to the recess 20 by a water guiding means described later.

The connection valves 7, such as the two-way valve 7a and the three-way valve 7b,
The connection valve fitting 22 is fixed to a connection valve fitting 22 erected at the front end of the base 1 so that the connection valve fitting 22 faces a first notch hole described later. Upwards,
The valve opening / closing section 7d is arranged to face forward.
Further, as shown in FIG. 7A, the water guiding means for guiding the water in the drainage tray 21 to the concave portion 20 is provided.
A drainage hole 21a is provided at a rear portion of the base 1, and a water guide groove 24 for guiding water discharged from the drainage hole 21a to the recess 20 is provided at a substantially central portion of the base 1 so that the drainage tray 21 receives the water. Drain water or the like is introduced into the recess 20. In addition, the water guide groove 24 is inclined downward toward the recess 20 to improve the flow of water. Further, as shown in FIG. 7B, a gutter 21b inclined downward may be provided to drain the drain water from the drain tray 21 into the water guide groove 24.

The base 1 is housed in an outer shell 9 provided with a suction port 9a for sucking outdoor air on the side surface. On the front surface of the outer body 9, a first notch 12 a corresponding to the connection valve fixture 22 to which the connection valve 7 is fixed and the drainage tray 21, and a second notch corresponding to the electrical component box 6. Hole 12b
Attach the front cover 12 formed with the second notch hole
An electrical component box cover 25 for covering the electrical component box 6 is attached to 12b.

FIG. 8 is an enlarged sectional view of a main part showing another embodiment of the outdoor unit 40 of the separation type air conditioner according to the present invention. FIG.
As shown in the figure, the electrical component box cover 25 has an opening through which an electric wire 32 connected to the electrical component box 30 from the indoor unit 30 is inserted.
There is provided a protruding portion 25b provided below 25a.

The drain hole 1a is shown in FIG.
(B), FIG. 4 (A) and FIG. 4 (B),
When the drain hose 13 is connected to one or the other, the drain hose 1 and the drain hose 13
And a connection pipe 15 is interposed between the drain hole 1a and the water stopcock 14 is attached to the other or one of the drain holes 1a. This makes it possible to solve the problem that the work of drawing the drain hose connected to the drain hole 1a becomes difficult, and the drain unit 51a is not provided in the air conditioner mounting table 51. Even in this case, the structure is such that the drain hose 13 can be connected to the drain hole 1a by interposing the connection pipe 15 from the indoor side.

Further, the connection pipe 15 includes a locking portion described below for locking the drainage hole 1a.
13 has a projection 15e and a hole 15d for inserting the
It is configured to be elastic and formed in a substantially cylindrical shape, whereby the connection pipe 15 can be easily locked in the drain hole 1a by utilizing its elasticity, and the projecting portion 15e
Thus, the drain hose 13 can be easily and accurately inserted.

Further, the locking portion of the connection pipe 15 is
As shown in FIGS. 4A and 4B, a locking groove 15c having a substantially concave cross section for locking in the drain hole 1a, and flanges 15a and 15b provided on both sides of the locking groove 15c. In this way, the drainage hole 1a is formed by utilizing the elasticity of the connection pipe 15 in the same manner as described above.
Thus, the structure can be easily and accurately locked.

Also, as shown in FIGS. 4A and 4B, the flange 15a located on the opposite side of the projection 15e is slightly smaller in outer shape than the flange 15b located on the projection 15e side. Accordingly, the connection pipe 15 can be smoothly and accurately locked to the drain hole 1a by utilizing its elasticity.

The flange 15a located on the opposite side of the protruding portion 15e is formed in a tapered shape as shown in FIGS. 4A and 4B. The drain 15a is formed by utilizing the elasticity of the pipe 15
Thus, the structure can be further smoothly and accurately locked.

As shown in FIGS. 3 (A) and 3 (B), the water stopcock 14 has a locking groove 14c having a substantially concave cross section for locking in the drain hole 1a. 14c is provided with a locking portion composed of flanges 14a and 14b provided on both sides thereof, and has a configuration formed with elasticity, whereby the water stopcock 14 is made use of its elasticity. The drain hole 1a
Thus, the structure can be easily and accurately locked.

Further, one flange 14a constituting the locking portion of the water stopcock 14 is formed with a slightly smaller outer shape than the other flange 14b as shown in FIGS. 3 (A) and 3 (B). With this configuration, the water stopcock 14 can be smoothly and accurately locked to the drain hole 1a by utilizing its elasticity.

Further, one of the flanges 14a constituting the locking portion of the water stopcock 14 is formed in a tapered shape as shown in FIGS. 3 (A) and 3 (B). By using the elasticity of the stopcock 14, the drain hole is
It becomes a structure that can be more smoothly and accurately locked to 1a.

Next, the construction procedure of pipes and the like and the operation thereof will be described. First, the pipe 31, the electric wire 32, and the drain drain pipe 33 output from the indoor unit 30 are bundled, and pulled out from the pipe hole of the frame 53 constituting the mounting window 50 to the outside.
The pipe 31 is connected to a predetermined connection valve 7 (two-way valve 7a or three-way valve 7).
Connect to the indoor piping connection part 7c in b), and insert a tool such as a hexagon wrench into the valve opening / closing part 7d as necessary to open the valve. At this time, the drain port of the drain drain pipe 33 is made to face above the drain tray 21 so that the drain water drops on the drain tray 21. Next, the electric component box cover 25 is removed and the electric wire 32 is connected to a terminal plate (not shown) of the electric component box 6 so that the electric wire 32 is inserted through the opening 24a of the electric component box cover 24. The electrical component box cover 25 is attached again.

The drain water introduced from the indoor unit 30 is dropped onto the drain tray 21 through the drain drain pipe 33, and together with the condensed water dropped from the two-way valve 7a or the three-way valve 7b, flows into the water guide groove 24. The water is guided and stored in the recess 20. The water stored in the recess 20 is the slinger 3a
And is splashed to the outdoor heat exchanger 2 by the propeller fan 3 to remove heat by evaporation of water, thereby improving the heat exchange efficiency of the outdoor heat exchanger 2.

[0038]

As described above, according to the outdoor unit of the air conditioner according to the present invention, since the connection valves such as the two-way valve and the three-way valve are protruded at the center of the front end of the base, the indoor unit is provided. The pipe can be directly connected to this connection valve, so that parts such as internal pipes can be saved, and the pipe connection work can be performed at the center of the mounting window, so that workability can be improved. Further, it is possible to solve the problem that the operation of drawing the drain hose connected to the drain hole 1a becomes difficult as described in the related art above, and the drainage to the air conditioner mounting table 51 can be solved. Even when the portion 51a is not provided, the outdoor unit of the air conditioner is configured such that the drain hose 13 can be connected to the drain hole 1a through the connection pipe 15 from the indoor side.

A drain pan below the connection valve for receiving dew condensation water dripping from the connection valve and drain water guided by a drain drain pipe bundled together with piping and wiring from the indoor unit. The water in the drain pan is guided to the recess provided at the rear of the base, and the water collected in the recess is drawn up by slinger and sprayed on the outdoor heat exchanger. The heat exchange efficiency can be improved by effectively utilizing water.

In addition, since a water guide groove for guiding water drained from the drain tray to the recess is provided substantially at the center of the base, drain water or the like received by the drain tray can be received in the recess without additional parts. Can be conducted.

Further, the electrical component box is opened to face the second notch hole formed in the front cover, and the electrical component box cover is attached to the second notch hole. The electrical component box cover can be removed without removing it.

Further, the connection valve is fixed to a connection valve fitting which is erected at the rear end of the base, and the connection valve fitting faces the first notch hole. The connection valve protrudes from the hole, and the first missing hole can be closed by the connection valve fitting.

[Brief description of the drawings]

FIG. 1 is a schematic view showing installation of an air conditioner according to the present invention and a conventional example, where (A) is a side view and (B) is a perspective view.

FIG. 2 is an external perspective view showing an embodiment of the outdoor unit of the air conditioner according to the present invention.

FIG. 3 is an explanatory view of a main part of an outdoor unit of an air conditioner according to the present invention, in which (A) is a perspective view of a water stopcock, and (B) is a cross-sectional view showing a state in which the water stopcock is attached to a drain hole. FIG.

FIG. 4 is an explanatory view of a main part of an outdoor unit of an air conditioner according to the present invention, wherein (A) is a perspective view of a connecting pipe, and (B) is a cross-sectional view showing a state where the connecting pipe is attached to a drain hole. is there.

FIG. 5 is an exploded perspective view showing an embodiment of the outdoor unit of the air conditioner according to the present invention.

FIG. 6 is a sectional view of a main part showing an embodiment of the outdoor unit of the air conditioner according to the present invention.

FIG. 7 is an enlarged sectional view of a main part showing a connection valve and a drain tray of an outdoor unit of an air conditioner according to the present invention.

FIG. 8 is an enlarged sectional view of a main part showing another embodiment of the outdoor unit of the air conditioner according to the present invention.

FIG. 9 is a cross-sectional view of a main part showing an outdoor unit of a conventional air conditioner.

FIG. 10 is an exploded perspective view showing an outdoor unit of a conventional air conditioner.

[Explanation of symbols]

 Reference Signs List 1 base 1a drain hole 2 outdoor heat exchanger 3 propeller fan 3a slinger ring 4 air guide plate 5 compressor 6 electrical component box 7 connection valve 7a two-way valve 7b three-way valve 7c indoor piping connection part 7d valve opening / closing part 8 fan motor 9 Outer body 9a Suction port 12 Front cover 12a All cutout hole 12b Second cutout hole 13 Drain hose 14 Stopcock 14a, 14b Flange of stopcock 14c Locking groove of stopcock 15 Connection pipe 15a, 15b Connection pipe Flange 15c Connection pipe locking groove 15d Connection pipe hole 15e Connection pipe protrusion 20 Recess 21 Drain pan 21a Drain hole 21b Gutter 22 Connection valve fitting 24 Water guide groove 25 Electrical component box cover 25a Opening 25b Projection 30 Indoor unit 31 Piping 32 Electric wire 33 Drain drain pipe 40 Outdoor unit

Claims (15)

[Claims] 1. An outdoor heat exchanger at the rear of a base provided with front and rear drain holes to which a drain hose is connected or to which a water stopcock is attached, a propeller fan with a slinger to lift drain water, and a draft guide A plate is placed, a recess for receiving drain water is provided below the propeller fan, a compressor is provided on one front side, an electrical component box is provided on the other side, and a fan motor for driving the propeller fan is provided at the center. Each of them is placed, and in the center of the front end, a connection valve for connecting the connection pipe from the indoor unit, and the condensed water from the connection valve below the connection valve and the drain water guided from the indoor unit by the drain drain pipe etc. And a water receiving means for projecting a receiving drainage tray and receiving water from the drainage receiving tray to the concave portion.The bottom plate is opened forward and backward, and is housed in an outer body provided with a suction port for sucking outdoor air on a side surface. At the front opening of the outer shell, A front cover formed with a first notch hole corresponding to the connection valve and the drainage pan fixed to a connection valve mounting fixture erected at the front end of the base, and a second notch hole corresponding to the electrical component box; And an electrical component box cover that covers the electrical component box is attached to the second cutout hole. The drain hole is used to connect one or the other of the drain hoses when draining one or the other. An outdoor unit for an air conditioner, wherein a connection pipe is interposed between a hole and a drain hose, and a water stopcock is attached to the other or one of the drain holes. 2. The connecting pipe includes a locking portion that locks the drain hole and a protruding portion that inserts the drain hose.
The outdoor unit of an air conditioner according to claim 1, wherein the outdoor unit is formed in a substantially cylindrical shape having elasticity. 3. The locking portion according to claim 2, wherein the locking portion comprises a locking groove having a substantially concave cross section for locking the drainage hole, and flanges provided on both sides of the locking groove. The outdoor unit of the air conditioner described. 4. The air conditioner according to claim 2, wherein the flange located on the side opposite to the projecting portion is formed with an outer shape that is slightly smaller than the flange located on the projecting portion side. Machine outdoor unit. 5. The outdoor unit of an air conditioner according to claim 2, wherein the flange located on the side opposite to the protruding portion is tapered. 6. The stopper according to claim 6, wherein the water stopper is provided with a locking portion having a locking groove having a substantially concave cross section for locking the drainage hole and flanges provided on both sides of the locking groove. The outdoor unit of an air conditioner according to claim 1, wherein the outdoor unit is formed by: 7. The air conditioner according to claim 2, wherein one of the flanges constituting the locking portion of the water stopcock has an outer shape that is slightly smaller than the other flange. Outdoor unit. 8. One of the flanges constituting the locking portion of the water stopcock is formed in a tapered shape.
Or the outdoor unit of the air conditioner according to claim 7. 9. The outdoor unit of an air conditioner according to claim 1, wherein the electrical component box is opened and faced to a second cutout hole formed in the front cover. 10. The outdoor unit of an air conditioner according to claim 1, wherein the electrical component box cover is provided with a protruding portion that protrudes to the front and has an opening through which an electric wire is inserted downward. 11. The outdoor unit of an air conditioner according to claim 1, wherein said water guide means is formed by extending said drain tray. 12. The air conditioner according to claim 1, wherein the water guide means includes a water guide groove at a substantially central portion of the base for guiding drain water drained from the drain tray to the concave portion. Outdoor unit. 13. The outdoor unit of an air conditioner according to claim 12, wherein a cylindrical drain port is provided in the drain tray, and drain water in the drain tray is drained to the water guide groove. . 14. The outdoor unit of an air conditioner according to claim 12, wherein a downwardly inclined gutter is provided in the drain pan, and drain water of the drain pan is drained to the water guide groove. . 15. The outdoor unit of an air conditioner according to claim 1, wherein an indoor piping connection portion of the connection valve is arranged upward, and a valve opening / closing portion is arranged forward.