JPS6314256B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a condensate water treatment device for an air conditioner.

Conventional Structure and its Problems In a typical conventional integrated air conditioner, a board 2 is disposed inside an exterior case 1, as shown in FIGS. 1 to 3. The interior of the exterior case 1 is divided by a barhead 3 into an indoor space 4 and an outdoor space 5. In the indoor space 4, an indoor heat exchanger placed on an indoor water tray 6 on a substrate 2 is installed. 7 is provided, and on the other hand, in the outdoor space 5, an outdoor heat exchanger 8 is mounted on the substrate 2. The indoor water tray 6 is connected via a drain pipe 9.
The outdoor space 5 communicates with an outdoor water tray 10 disposed on the substrate 2. A fan motor 12 is fixed to the bulkhead 3 via a support stand 11. An indoor fan is attached to a shaft 12a of the fan motor 12 that projects into the indoor space 4. An outdoor fan 14 is attached to the shaft 12b that protrudes from the outside. A slinger ring 15 is attached to the outer periphery of the outdoor fan 14, with a portion protruding into the outdoor water tray 10. A suction grill 16 and a blowout grill 17 are arranged in parallel on the front surface of the exterior case 1, and the indoor air sucked from the suction grill 16 by the action of the indoor fan 13 is cooled by the indoor heat exchanger 7 (when cooling). ) or heated (during heating), the scroll 18 and the blowout grill 1
7 and is brought back into the room. On the other hand, a suction grill 19 is provided on the rear side surface of the exterior case 1, and an outlet grill 20 is provided on the rear surface of the exterior case 1.
The outdoor air sucked in from the suction grill 19 by the action of the outdoor fan 14 is heated (during heating) or cooled (during cooling) by the outdoor heat exchanger 8, and then sent from the blowout grill 20. He is taken back outside. In the figure, 21 is a drainage hole formed in the substrate 2 below the outdoor heat exchanger 8, 22 is a drainage joint attached to the exterior case 1 at a position directly below this drainage hole 21, and 23 is an air drain hole. The guide 24 is a compressor.

In the air conditioner with the above configuration, condensed water generated in the indoor heat exchanger 7 during cooling operation flows from the indoor water tray 6 to the outdoor water tray 10 through the drain pipe 9.
(Figure 3). As the fan motor 12 rotates, the slinger ring 15 rotates together with the outdoor fan 14, and the condensed water in the outdoor water tray 10 is splashed up and scattered to the outdoor heat exchanger 8.
adhere to the surface of the A part of the condensed water adhering to the outdoor heat exchanger 8 is evaporated here and released into the outdoor air together with the air, but the remaining part becomes small droplets of water and falls onto the substrate 2 through the drain hole 21. The water is then discharged outside through the drainage joint 22. On this occasion,
A drainage hose (not shown) may be connected to the drainage joint 22 to centrally guide water to a predetermined location.

On the other hand, during heating operation, condensed water is generated on the surface of the outdoor heat exchanger 8, falls onto the substrate 2, and is drained outside through the same drainage path as described above.

However, the conventional configuration described above requires expensive parts such as the drain pipe 9 and the outdoor water tray 10 to treat condensed water, resulting in an overall high cost. In addition, all of the condensed water that is splashed up by the slinger ring 15 during cooling is released outdoors as water vapor or water droplets, so the condensed water generated in the indoor heat exchanger 7 cannot catch up with this, and the outdoor water receiving tray 10 When the water level becomes insufficient,
It becomes difficult to promote cooling of the outdoor heat exchanger 8 by the slinger ring 15. In addition, the indoor water tray 6
This imposes design constraints because the base of Furthermore, the outdoor water tray 10
Due to the deformation, the slinger ring 15 and the outdoor water tray 10 come into contact with each other, resulting in problems such as generation of noise and locking of the fan motor 12.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks.
It is an object of the present invention to provide a condensed water treatment device for an air conditioner that has a simple configuration, can be manufactured at low cost without being subject to design restrictions, and can always provide stable operation.

Composition of the Invention In order to achieve the above object, the condensed water treatment device for an air conditioner of the present invention includes a substrate on which an indoor heat exchanger and an outdoor heat exchanger are placed in an exterior case. , an opening/closing mechanism having a stop valve attached to one end of a shape memory alloy coil body set to expand in a high temperature phase and contract in a low temperature phase is provided in proximity to or in contact with the outdoor heat exchanger; The drain hole is opened and closed by the water stop valve of the opening and closing mechanism, and is formed in the substrate.

Description of Implementation Arrangement Hereinafter, one implementation arrangement of the present invention will be explained based on FIGS. 4 and 5. The air conditioners in the same row are the same as those shown in Figures 1 to 3, except for the condensed water treatment device, so the same reference numbers will be given to the same parts for explanation. Omitted.

In FIGS. 4 and 5, the air guide 23
An introduction hole 23a is formed in the
The condensed water formed in the indoor heat exchanger (7 in Figure 2) and falling into the indoor water pan (6 in Figure 2) is transferred to the indoor water pan, the scroll (2nd
18) in the figure and a communication hole (not shown) formed in the partition plate (3 in Figure 2) to the outdoor space 5, and passes through the introduction hole 23a to the slinger ring 15 and the outdoor heat exchanger. 8 over the substrate 2. An opening/closing mechanism 24 is provided adjacent to or in contact with the outdoor heat exchanger 8 .
The opening/closing mechanism 24 includes a coil body 25 made of a shape memory alloy that is set to expand in a high temperature phase and contract in a low temperature phase, and a water stop valve 26 attached to one end of this coil body 25. , this water stop valve 26 is
When the coil body 25 expands, the drain hole 21 formed in the substrate 2 is closed, and when the coil body 25 contracts, the drain hole 21 is opened.

In the air conditioner equipped with the wastewater treatment device configured as described above, during cooling operation, as shown in FIG. is closed by a stopcock 26. Therefore, the water level of the condensed water that has been introduced to the outdoor space 5 rises, and the slinger ring 1
5 and adheres to the outdoor heat exchanger 8. A portion of the attached condensed water evaporates and is discharged outdoors together with the air, but the remaining portion falls onto the substrate 2 as small water droplets and is stored there. As a result, the amount of condensed water discharged outside is reduced, and the level of condensed water on the substrate 2 can always be maintained at a sufficient level.

On the other hand, during heating operation, since the coil body 25 functions as an outdoor heat exchanger, the coil body 25 contracts to pull up the water stop valve 26 and open the drain hole 21, as shown in FIG. As a result, the condensed water formed on the surface of the outdoor heat exchanger 8 is transferred to the substrate 2.
The water is discharged outside the room through the drain hole 21 and the drain joint 22 without being retained therein.

Effects of the Invention As explained above, in the condensed water treatment device for an air conditioner according to the present invention, water can be accumulated directly on the substrate without using an outdoor water pan or a drain pipe, and a high-temperature phase An opening/closing mechanism consisting of a water stop valve attached to one end of a shape memory alloy coil body set to expand at a temperature and contract at a low temperature phase is installed near or in contact with the outdoor heat exchanger, and this opening/closing mechanism Since a drainage hole that can be opened and closed is formed in the substrate, it can be manufactured at low cost, and stable operation can always be obtained without problems such as securing the level of condensed water or malfunctions in operation.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional integrated air conditioner, Fig. 2 is a sectional side view of the air conditioner, Fig. 3 is an enlarged sectional side view of main parts showing the condensed water treatment device of the air conditioner, FIG. 4 is an enlarged cross-sectional side view of the main parts showing the condensed water treatment device during cooling of an air conditioner according to one embodiment of the present invention, and FIG. 5 is an enlarged cross-sectional side view of the main parts showing the same treatment device during heating. be. DESCRIPTION OF SYMBOLS 1... Exterior case, 2... Board, 7... Indoor heat exchanger, 8... Outdoor heat exchanger, 21... Drain hole, 24...
Opening/closing mechanism, 25...coil body, 26...water stop valve.

Claims (1)

[Claims] 1 A substrate on which an indoor heat exchanger and an outdoor heat exchanger are mounted is arranged in an exterior case, and a shape memory alloy coil body is set to expand in a high temperature phase and contract in a low temperature phase. An air conditioner comprising: an opening/closing mechanism with a water stop valve attached to one end of the outdoor heat exchanger; and a drain hole opened/closed by the water stop valve of the opening/closing mechanism being formed in the substrate. Machine condensate treatment equipment.