JPH01260254A - Air conditioner - Google Patents

Abstract

PURPOSE:To discharge condensed or melted water produced during a cooling or heating operation to the outdoors by a method wherein an air conditioner is constituted so as to lead water within an indoor side water receiver into an external water receiver, and an ultrasonic atomizer is provided within the external water receiver provided in a position corresponding to an external blower. CONSTITUTION:Water produced through indoor side and external heat exchangers 5 and 7 is all collected into an external water receiver 10 and then ejected in the form of fog by an ultrasonic atomizer 11. Further, fog thus ejected is forcibly discharged to the outdoors by an external blower 8. Furthermore, since the ultrasonic atomizer 11 is actuated only when a water level is higher than a predetermined level, the idle operation of the ultrasonic atomizer 11 can be prevented, and moreover, when the temperature of the collected water is lowered to a predetermined temperature or below, for example, 0 deg.C or below, a heating means 13 is actuated, thereby preventing the collected water from being frozen.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an air conditioner.

BACKGROUND OF THE INVENTION Generally, when air is cooled in an indoor heat exchanger, moisture in the air condenses to form water. One method of discharging this water outdoors is to use a sprayer to make it into a shape and discharge it outdoors.

Hereinafter, an example of the above-mentioned conventional air conditioner will be described with reference to the drawings.

FIG. 9 is a sectional view of a conventional air conditioner. In Figure 9, 31 is the air conditioner main body (hereinafter simply referred to as the main body)
Inside, from the top to the bottom, there are, in order, an indoor air blower 'R32, an indoor heat exchanger 33, and an outdoor air blower t! A
34 and outdoor It'! II heat exchanger 35 is arranged,
In addition, a water tray 36 is arranged at the bottom of the indoor heat exchanger 33 to receive condensed water generated during cooling, and at a position closer to the outside air (closer to the window), the water collected in the water tray 36 is spouted outdoors. Ultrasonic atomizer (hereinafter simply referred to as atomizer) 37
is provided.

In the above configuration, the condensed water generated in the indoor heat exchanger 33 was collected in the water tray 36, enriched by the sprayer 37 as shown in FIG. 9, and discharged outdoors from the discharge port 37a.

Problems to be Solved by the Invention However, according to the above configuration, the evening particles generated by the sprayer 37 have only a small initial velocity controlled by the vibrator of the sprayer 37, and therefore, the particles on the outdoor side of the main body 31 The problem is that the smoke accumulates in the vicinity, giving the user a sense of unease as if smoke is being generated due to equipment failure, and that the particles recombine and become larger, making the area outside the room wet. was there. Furthermore, in the defrosting cycle during heating, the water generated by melting the frost adhering to the outdoor heat exchanger 35 cannot be turned into mist and discharged outdoors in winter.

Therefore, in view of the above-mentioned problems, the present invention atomizes condensed water generated during cooling operation and molten water generated during the defrosting cycle during heating into a mist, without causing the mist to remain near the outdoor side of the main unit. The purpose is to provide air conditioners that can discharge air outdoors.

Means for Solving the Problems In order to solve the above problems, the air conditioner of the present invention includes an indoor III heat exchanger, an indoor blower, an outdoor heat exchanger, and an outdoor blower in the air conditioner main body. In the air conditioner, an indoor water pan is provided below the indoor heat exchanger, an outdoor water pan is provided below the outdoor heat exchanger, and an indoor water pan is provided in the outdoor water pan. The structure is such that the water in the indoor water tray is guided, and an ultrasonic sprayer is installed in the outdoor water tray at a position corresponding to the outdoor blower to heat the water collected in the outdoor water tray. means,
A water level detection means for detecting the level of the collected water and a water temperature detection means for detecting the temperature of the collected water are respectively provided, and the ultrasonic sprayer is activated when the water level is equal to or higher than a predetermined height by the water level detection means. Additionally, a control device is provided which operates the heating means when the water temperature is below a predetermined temperature determined by the water temperature detection means.

Function According to the above configuration, all the water generated in the indoor and outdoor heat exchangers is collected in the outdoor water tray and then released by the ultrasonic sprayer, and the released dew is sent outdoors by the outdoor redirection mR. Forced to be ejected. In addition, since the ultrasonic sprayer is activated when the water level is above a predetermined height, dry operation of the ultrasonic sprayer is prevented, and the heating means is activated when the water temperature falls below a predetermined temperature, for example, 0°C or less. Therefore, the collected water will not freeze.

Example Below, an air conditioner according to an example of the present invention is shown in Figs.
This will be explained based on FIG.

Reference numeral 1 denotes an air conditioner main body (hereinafter simply referred to as the main body), the interior of which is divided by a central partition wall 2 into an indoor space 3 and an outdoor space 4. An indoor heat exchanger 5 and an indoor air blower R6 are arranged in the indoor space 3, and an outdoor heat exchanger 7 and an outdoor recirculation Juli 8 are arranged in the outdoor space 4. In addition to the front and back vents 1a and 1b formed on the front and rear surfaces of the main body 1, side vents IC are formed on both sides of the main body 1 corresponding to the outdoor space 4. An indoor water tray 9 is provided below the indoor heat exchanger 5, and an outdoor water tray 10 is provided below the outdoor heat exchanger 7. The water (dew) accumulated in 9 is naturally guided to an outdoor water tray 10.

That is, the outdoor water tray 10 is provided at a lower position than the indoor water tray 9, and one end 9a of the predetermined range of the indoor water tray 9 (the lower part of the indoor blower) is located above the outdoor water tray 10. It is slanted.

Note that the outdoor water tray 10 extends to the partition wall 2 side. A cylindrical recess tOa is formed between the outdoor fan 8 and the outdoor heat exchanger 7 of the outdoor water tray 10, and an ultrasonic sprayer ( 11 (hereinafter simply referred to as a sprayer) is arranged. A float 12 is attached to this sprayer 11 so that the sprayer 11 is always at the same position with respect to the water surface. ) 13, water level detection means 14 for detecting the upper surface of the collected water and water temperature detection means 15 for detecting the temperature of the collected water are arranged.

Next, to explain the control system based on FIG. 6, a relay contact 17 is interposed in the middle of the heating circuit 16 having the heating means 13, and this relay contact 17 is activated by a signal from the water temperature detection means 15. It is opened and closed by the first control device 218. Further, a switch 21 of the water level detection means 14 is interposed in the drive circuit 20 having the second control device 19 for operating the sprayer 11, so that the sprayer 11 will not operate unless the water level is above a predetermined level. There is. Note that these control devices are arranged in a control box 22 provided inside the main body 1. Furthermore, the outdoor side blower 8 can be rotated in forward and reverse directions depending on the operating mode.

Next, the operation of the air conditioner will be explained.

During cooling operation, condensed water generated in the indoor heat exchanger 5 falls into the indoor water tray 9, is collected in the outdoor water tray 10, and finally enters the recess 10a.

When the water level in the recess 10a reaches a height that allows rvig, the switch 21 of the water level detection means 14 is turned on, the second control device 19 is energized, and the sprayer 11 is driven to discharge mist from its spray hole 11a. The discharged mist is mixed with the air sucked in the forward direction, that is, from the side vent IC, by the outdoor side blower 8, as shown by arrow A in FIG. It is discharged outdoors from 1b without being retained.

At this time, the temperature of the water generated in the indoor heat exchanger 5 is approximately 1
Since it is around 0℃, lower than the outdoor temperature (about 30℃),
When this fog passes through the outdoor heat exchanger 7, heat exchange occurs and the heat dissipation capacity increases, leading to an increase in the cooling capacity and a decrease in the extinguishing power.

Next, during heating operation, frost adheres and grows on the fin surface of the outdoor heat exchanger 7 (which functions as an evaporator), but when the temperature of the pipes of the outdoor heat exchanger 7 drops below a certain value, frost is removed. When the frost operation is started, the frost is melted, falls into the outdoor water tray 10, and is collected. Similar to the above, when this recovered water reaches a predetermined water level, the atomizer 11 is activated to atomize it. And this fog is accompanied by Jill outside.
18, the air is mixed with the air sucked in from the rear vent 1b of the main body 1 in the opposite direction to the above, and is mixed with the air sucked in from the rear vent 1b of the main body 1,
C is discharged outdoors without being retained.

At this time, the temperature of the generated water is 5°C when the outside air is around 10°C.
℃, and the fog is directly discharged outdoors without passing through the outdoor heat exchanger 7, so there is no heat exchange, so the amount of heat absorbed does not decrease, and therefore the amount of heat radiated indoors does not decrease. Furthermore, there is a risk that the water collected in the outdoor water tray 10 may freeze if the water temperature is below 0°C.
The relay contacts 17 of the control device 18 are closed and the heating means 1
3 is energized to prevent the collected water from freezing. Then, for example, when the water temperature reaches 2° C., the heating means 13 is stopped.

Incidentally, the flow of a series of operations of the heating means 13 and the sprayer 11 described above is shown in FIG. 7.

Furthermore, since the sprayer 11 is attached to the float 12, the relative position of the sprayer 11 with respect to the water level is constant, so that optimal Iv & mist conditions can always be obtained. for example,
As shown in FIG. 8, if the water level is too high, the particle size will become large and may wet the floor, and if the water level reaches a certain level, the amount of spray will be less than the amount of water flowing into the outdoor water tray 10, resulting in overflow. Danger arises. Therefore, by maintaining the water level within the range shown by the shaded area in Figure 8, the atp
The particle size can be such that the amount of s is maximum and does not wet the floor.

By the way, in the above embodiment, the sprayer 11 is arranged between the outdoor side blower 8 and the outdoor side heat exchanger 7, but the sprayer 11 is placed between the partition wall 2 and the outdoor side fan tR8, or between the outdoor side blower tR8. The outside of the heat exchanger 7, that is, the rear vent 1b (Ill
It may be placed in

Effects of the Invention According to the air conditioner of the present invention, all the water generated in the indoor and outdoor heat exchangers is collected in the outdoor water tray and then released by the ultrasonic atomizer. can be discharged outdoors not only during cooling, but also during the defrost cycle during heating. In addition, since the ultrasonic sprayer is placed in a position corresponding to the outdoor fan, the mist emitted from the ultrasonic sprayer is forcibly discharged outdoors and does not accumulate as in the case of conventional methods, so it can be mistaken for smoke. Not only does this eliminate concerns, but it also eliminates wetting near the outdoor side due to recombination of fog particles. Furthermore, since the ultrasonic sprayer is activated when the water level is above a predetermined height, it is possible to prevent the ultrasonic sprayer from running dry, and when the water temperature falls below a predetermined temperature, for example, below 0°C. Since the heating means is activated, the recovered water can be prevented from freezing.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an air conditioner according to an embodiment of the present invention, FIG. 2 is a horizontal sectional view of the same, FIG. 3 is an enlarged sectional view of the main part of FIG. Figure 5 is a perspective view of the float, Figure 5 is an overall perspective view of the air conditioner, Figure 6 is a circuit diagram showing the control system of the air conditioner, and Figure 7 is the operation of the ultrasonic sprayer in the air conditioner. flowchart diagram,
FIG. 8 is a characteristic diagram showing the relationship between the water level and particle size and the water level and the amount of spray in the ultrasonic atomizer of the air conditioner, and FIG. 9 is a sectional view of the conventional air conditioner. 1... Air conditioner main body, 1b... Rear vent, IC
...Side vent, 2...Partition wall, 4...Outdoor space, 5...Indoor heat exchanger, 6...Indoor blower,
7... Outdoor heat exchanger, 8... Outdoor blower, 9...
・・Indoor water tray, 10・・Outdoor water tray, 10a・
... Recessed portion, 11... Ultrasonic injector, 13... Heating means, 14... Water level detection means, 15... Water temperature detection means, 18... First control device, 19... Second control device. Agent Yoshihiro Morimoto fig. Figure 7 Figure 7 Figure 7

Claims (1)

[Claims] 1. An air conditioner in which an indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan are arranged in the air conditioner body, and the indoor heat exchanger is located below the indoor heat exchanger. A water tray is provided below the outdoor heat exchanger, and the water in the indoor water tray is guided into the outdoor water tray at a position corresponding to the outdoor blower. An ultrasonic sprayer is provided in the outdoor water tray, heating means for heating the water collected in the outdoor water saucer, water level detection means for detecting the water level of the collected water, and temperature detection means for detecting the temperature of the collected water. Water temperature detection means are provided for each,
and an air conditioner provided with a control device that operates an ultrasonic sprayer when the water level is above a predetermined height by the water level detection means and operates a heating means when the water temperature is below a predetermined temperature according to the water temperature detection means.