JPH0136031Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air conditioner installed outdoors or indoors.

Figure 1 shows an overview of a conventional air conditioner, where 1 is a compressor, 2 is a water heat exchanger, 3 is an air heat exchanger, and 4 is an air heat exchanger.
is a blower drive motor, 5 is a blower, 6 is a lower drain pan provided at the bottom of the air heat exchanger chamber in which the air heat exchanger is installed, 7 is an upper drain outlet, and 8 is an outlet for the air heat exchanger. Connected upper drain discharge hose, 9 is the air conditioner mount, 10 is the same mount 1
0 is a lower drain pan attached to the lower drain pan, 11 is an opening of the lower drain pan, 12 is a foundation provided when the air conditioner is installed outdoors, 13 is the ground, and 14 is connected to the sewage provided on the foundation 12. 15 is an air outlet, and 16 is a machine room that houses the water heat exchanger 2 as well as a compressor, piping, a control box, and the like.

In winter, when the air conditioner performs heating operation, the refrigerant gas compressed by the compressor 1 is transferred to the water heat exchanger 2 or, in the case of an air conditioner without a water heat exchanger, to the indoor air heat exchanger. It releases heat and becomes a liquid refrigerant.

On the other hand, water heated by the water heat exchanger 2 or air heated by the indoor air heat exchanger is used for heating.

The liquid refrigerant enters the air heat exchanger 3 at the top of the air conditioner via a pressure reduction mechanism, where it absorbs heat from the air sucked in by the blower 5 driven by the motor 4, and converts into gaseous refrigerant. It becomes a refrigerant and enters the compressor 1. At this time, since the air heat exchanger 3 has a lower temperature than the outdoor air, condensed water is generated on the surface of the air heat exchanger 3 and remains on the drain pan 6.

Further, when the outside temperature is low, frost forms on the surface of the air heat exchanger 3, and when this frost is periodically melted to maintain the performance of the air conditioner, water flows down from the air heat exchanger 3 into the drain pan 6.

Rainwater also enters from the air outlet 15 and falls onto the drain pan 6.

These waters flow from the upper drain outlet 7 to the hose 8.
It falls onto the foundation 12 through.

On the other hand, condensed water forms on low-temperature parts such as the accumulator and refrigerant piping (not shown) in the machine room 16, and falls onto the foundation 12 through the gap between the hose 8 and the drain pan opening 11, together with the water on the top of the air conditioner. It flows into the sewer through the discharge channel 14.

Therefore, in an air conditioner installed outdoors in a cold region, the generated condensate is guided into a space surrounded by the air conditioner mount 9 and the foundation 12 and treated so that it is cooled by the outside air and does not freeze. are doing.

However, in recent years, there has been an increase in the use of waste heat from building exhaust air as a heat source for air conditioners in order to save energy. In the case of a conditioner, a special foundation must be built to prevent the floor from getting wet, or the air conditioner must be modified to prevent drain from falling under the lower drain pan 10, which requires a lot of effort and expense.

FIG. 2 shows a conventional drain processing device for an air conditioner, where 17 is a lower drain pan, 18 is a hose that guides the upper drain pan to the lower drain pan 17, and 1
9 is a drain outlet, 20 is a drain pipe connected to the drain outlet 19, 21 is a lower machine room, and 22 is a foundation.

The drain from the upper part of the air conditioner and the drain generated in the lower machine room 21 fall onto the drain pan 17 and are disposed of via the discharge port 19 and the drain pipe 20.

There is no problem with installing this type of air conditioner indoors or outdoors in warm regions, but if it is installed outdoors during the winter in cold regions, the drain from the air conditioner will be drained from the drain outlet 19 or drain piping. 20
The water is cooled by the outside air and freezes, making it impossible to drain the drain.

The present invention was proposed in view of these circumstances.The upper part is an air heat exchanger room where an air heat exchanger is installed, the lower part is a machine room, and drain pans are provided at the bottoms of both. In an air conditioner, there is an opening at the bottom of the drain pan in the machine room that has an upwardly protruding flange large enough for a drain hose connected to the drain pan in the air heat exchanger room to pass through, an opening with a removable plug, and a plug or drain. This air conditioner is characterized by being equipped with a drain outlet on which piping is detachably installed, and its purpose is for both indoor use and outdoor use in cold regions. Another object of the present invention is to provide an improved air conditioner that can easily handle drainage.

Since the air conditioner according to the present invention is configured as described above, when it is installed indoors or outdoors in a warm region, the drain hose connected to the drain pan of the upper air heat exchanger room can be connected to the flange that protrudes upward. If you place it on the drain pan of the machine room without inserting it into the opening that has a section, attach a plug to the other opening, and connect the drain pipe to the drain outlet, the drain from the upper part of the air conditioner and the lower part of the machine room will be removed. Condensed water from the parts is collected on the drain pan in the machine room. One opening of the drain pan is provided with an upwardly protruding flange portion, and the other opening is closed with a stopper, so that the drain on the drain pan does not flow down onto the foundation and flows through the drain outlet. When used indoors, there is no risk of wetting the floor.

When used in a cold region, the drain hose is inserted into an opening provided in the drain pan of the machine room that has a flange that protrudes upward, and the other opening is opened by removing the plug, and the drain outlet is plugged. By blocking the drain, the drain from the top of the air conditioner and the condensed water from the parts in the lower machine room are allowed to fall onto the foundation and are guided to the drainage channel without being cooled and frozen by the low-temperature outside air.

As described above, according to the present invention, the drain method is changed only by changing the position of the drain hose connected to the drain pan of the air heat exchanger room, and by attaching and detaching the plug to the opening of the lower machine room and the drain outlet. , the air conditioner can be easily changed to be installed indoors or outdoors in warm regions or outdoors in cold regions.

The present invention will be described below with reference to the illustrated embodiments.

31 is a drain pan disposed at the bottom of the lower machine room 32 of the air conditioner, and includes an opening 34 having an upper flange portion 34a into which a drain hose 33 connected to the drain pan of the upper air heat exchanger room is inserted, and a plug. An opening 36 to which a drain pipe 35 is removably attached is provided, and a drain outlet 39 to which a drain pipe 37 or a plug 38 is detachably attached is further provided.

Since the illustrated embodiment is constructed as described above, when installed indoors or outdoors in a warm region, the drain hose 33 is placed on the drain pan 31 without being inserted into the opening 34, and the opening 36 has a plug 3.
5 is fitted, and the drain pipe 3 is connected to the drain outlet 39.
Connect 7.

Drain from the upper air heat exchanger room of the air conditioner falls onto the drain pan 31 through the drain hose 33, and condensation from low-temperature parts such as the accumulator and refrigerant piping (not shown) in the lower machine room 32. Water also falls onto the drain pan 31.

The opening 34 of the drain pan 31 has a flange portion 34a projecting upward, and the other opening 34 has a flange portion 34a projecting upward.
6 is closed with a stopper 36, so the drain pan 3
The drain that has fallen onto the base 1 does not flow down onto the foundation 40 and is disposed of via the drain outlet 39 and the drain pipe 37.

However, in cold regions, using a third air conditioner
When installed as shown in the figure, the drain is cooled by outside air at the drain outlet 39 or the drain pipe 37 and freezes, making it impossible to discharge the drain.

In such a case, as shown in FIG. 4, the drain hose 33 is inserted into the opening 34, the plug 35 is removed to open the opening 36, and the drain outlet 39 is closed with the plug 38 to prevent upper air heat exchange. The drain from the chamber and the condensed water from the low-temperature parts in the lower machine room 32 fall onto the foundation 41 through the drain hose 33 and the opening 36, respectively, and flow to the drain 42 without being cooled and frozen by the low-temperature outside air. .

According to the illustrated embodiment, by changing the position of the drain hose 33 and attaching and detaching the plugs 35 and 38, the air conditioner can be installed indoors or outdoors in a warm region, or for outdoor installation in a cold region. It can be easily changed to any purpose.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a conventional air conditioner, Fig. 2 is a longitudinal sectional view showing the drain device part of the conventional air conditioner, and Figs. 3 and 4 are respectively of the air conditioner according to the present invention. FIG. 3 is a longitudinal cross-sectional view showing a portion of the drain device of one embodiment. 31...Drain pan, 32...Lower machine room, 3
3...Drain hose, 34...Opening, 34a...
Flange portion, 35... Plug, 36... Opening, 37...
...Drain piping, 38...Plug, 39...Drain outlet.

Claims (1)

[Scope of utility model registration request] In an air conditioner in which the upper part is an air heat exchanger room where an air heat exchanger is installed, the lower part is a machine room, and drain pans are provided at the bottoms of both, the air heat exchanger is installed at the bottom of the drain pan of the machine room. An opening having an upwardly protruding flange large enough for a drain hose connected to the drain pan of the chamber to pass through, an opening to which a stopper can be attached and removed, and a drain outlet to which a stopper or drain pipe is detachably installed. An air conditioner characterized by: