JPS63197830A - Waste water treater of air conditioner - Google Patents

Abstract

PURPOSE:To scatter mist far away and prevent a water pan from freezing by a method wherein an atomizer with an ultrasonic oscillator is installed under an outdoor side discharge port and water recovered in the water pan is atomized in accordance with the height of a water level and water temp. CONSTITUTION:At the time of space cooling, dew condensed on the surface of an indoor heat exchanger is stored in a water pan 15 installed under an outdoor heat exchanger 13 through a dew pan. This recovered water 20 is likely to freeze at the time of space heating operation, and hence when the temp. of the water is detected to be 0 deg.C or less by a water temp. detector 24, the oscillating frequency of an ultrasonic oscillator 22 is increased to utilize an atomizer 18 as a heating element and to prevent freezing. The water level of the water 20 in the pan 15 rises gradually; when the level reaches a detecting means 21 for the height of the water level, the oscillator 22 of the atomizer 18 is oscillated at a fixed frequency to atomize mist A from an atomizing port 23 and the mist is scattered far away by the air blown off from a diffuser 17 through the exchanger 13.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to drain water generated from an indoor heat exchanger by heat exchanging indoor air during cooling, and The present invention relates to a waste water treatment device for an air conditioner that treats water generated by melting frost attached to a heat exchanger.

BACKGROUND OF THE INVENTION Generally, when air is cooled by an indoor heat exchanger, moisture in the air condenses to form drain water.

One method for discharging this drain water outdoors is to use a sprayer to turn it into a mist and then discharge it outdoors.

An example of the conventional air conditioner mentioned above will be described below with reference to the drawings.

FIG. 7 is a side view showing a conventional air conditioner installed in a window, where 1 is the main body of the air conditioner and 2 is a fog. Figure 8 shows the conventional air conditioner body 1 (hereinafter referred to as body 1) of Figure 7.
3 is an indoor heat exchanger, 4 is a water tray, and 5 is a cross-sectional view of
is a sprayer, 6 is a discharge port, and 7 is an outdoor heat exchanger.

Drain water treatment of the air conditioner configured as above will be explained.

First, by exchanging heat with the indoor air, it is dispersed from indoor to outdoor. That is, as shown in FIG. 7, fog 2 is scattered outside from the main body 1 installed in the window. .

A conventional air conditioner having such a configuration is disclosed in, for example, Japanese Utility Model Application Publication No. 58-85123.

Problems to be Solved by the Invention However, with the above configuration, the particles of the mist 2 generated by the sprayer 5 only have a small initial velocity given by the vibrator of the sprayer 5, and the particles on the outdoor side of the main body 1 There was a problem in that the smoke remained in the vicinity, giving the user a sense of uneasiness as if smoke was being generated due to equipment failure.

Further, in the defrosting cycle during heating, water generated by melting frost adhering to the outdoor heat exchanger 7 cannot be turned into mist and discharged outdoors in winter.

In view of the above-mentioned problems, the present invention atomizes drain water generated during cooling operation and molten water generated in a defrosting vehicle during heating operation into a mist, and accumulates the mist in the vicinity of the outdoor side of the main body 1 in the form of smoke. To provide an air conditioner that can discharge air to the outdoors without causing air pollution.

Means for Solving the Problems In order to solve the above problems, the air conditioner waste water treatment device of the present invention includes an outdoor heat exchanger, and a heat exchanged air that passes through the outdoor heat exchanger. An outdoor side blower for sending out outdoor air from an outdoor air outlet of the air conditioner main body (hereinafter referred to as the main body), and an outdoor air blower disposed below the outdoor heat exchanger, and below the outdoor air outlet of the main body. a sprayer having an extending water tray, an ultrasonic vibrator provided below the outdoor air outlet of the main body to atomize the water collected in the water tray, and the vibrator; An oscillation circuit for operating the oscillation circuit, a control circuit for controlling the frequency of the oscillation circuit, and a detection means for detecting the water surface height and water temperature of the water collected in the water tray.

According to the above configuration, the present invention collects condensed water generated during cooling or water generated by melting frost adhering to the outdoor heat exchanger during defrosting during heating into a water tray, and collects this water into a water tray. When the temperature of the collected water is below 08C, the oscillation frequency of the oscillation circuit is increased, the vibration of the ultrasonic vibrator of the sprayer is increased, and the sprayer itself is heated, thereby preventing the collected water from freezing. Also, when the water in the sprayer's nozzle, which is at a higher water surface height than the water surface level of the water collected in the water tray due to capillary action, is at a water surface height that can be sprayed by the vibrations of the sprayer. The oscillation circuit is actuated to vibrate the ultrasonic vibrator at a predetermined frequency in response to a signal that detects the height of the water surface collected in the water tray, thereby making it possible to spray. Furthermore, the dispersion speed of the sprayed mist can be accelerated by the discharge air sent out through the outdoor heat exchanger by the outdoor fan, and the water collected in the water tray from the main unit to the outdoors can be accelerated. can be discharged in the form of a mist.

EXAMPLE Hereinafter, a waste water treatment device for an air conditioner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 shows a schematic perspective view of an air conditioner according to an embodiment of the present invention, in which 11 is an air conditioner, a Japanese main body (hereinafter referred to as the main body), 12 is an indoor heat exchanger, and 13 is an outdoor heat exchanger. , 14
1 is an outdoor blower, 15 is a water tray, 16 is a dew tray, and 19 is a power supply board.

FIG. 2 is a rear view of the air conditioner shown in FIG. 1, where 17 is an outdoor outlet and 18 is a sprayer.

FIG. 3 shows a partially cutaway side view of the air conditioner shown in FIG. 1, and A shows discharged mist.

Figure 4 shows an enlarged view of the main parts of the air conditioner in Figure 3.
0 is the water collected in the water tray, 21 is a detection means for detecting the water surface height of the water 20 collected in the water tray 15, 22 is an ultrasonic vibrator for the first day of the sprayer, 23 is the ejection hole of the sprayer 18, 2
4 is a water temperature detection means.

FIG. 5 is a flowchart showing operating conditions and stop conditions for the sprayer, and FIG. 6 is a flowchart showing the sprayer 18 in the air conditioner.
This figure shows the control circuit.

22 in the figure is an ultrasonic vibrator provided in the sprayer 18;
5 is an oscillation device that operates the ultrasonic transducer 22, 21 is a detection device that detects the water surface height of the water collected in the water tray 15, 24 is a water temperature detection sensor, 26 is the water surface height,
This is a control device that inputs a signal from the water temperature detection sensor 24 and controls the oscillation frequency of the oscillation device 25 that operates the ultrasonic transducer 22.

The operation of the waste water treatment device for an air conditioner configured as described above will be explained below using FIGS. 1 to 6.

First, considering the cooling operation, dew condensed on the surface of the fins of the indoor heat exchanger 12 is collected in the dew pan 16, drips onto the surface of the fins of the outdoor heat exchanger 13, and then collected in the water pan 15. . Next, considering the heating operation, outdoor heat exchanger 1
3 acts as an evaporator and causes frost to adhere and grow on its fin surface. For example, when the pipe temperature of the outdoor heat exchanger 13 falls below a certain value, defrosting operation is started, and the frost melts and the outdoor heat exchanger 1
Water is stored in a water tray 15 disposed below 3.

Especially during heating operation, there is a risk that the water collected in the water tray 15 may freeze at a water temperature of 0° C. or lower. If the water temperature of the water 20 is i-f'
If the temperature is below 0°C, the oscillation frequency of the ultrasonic vibrator 22 is increased and the sprayer 1 is
Use the sun as a heating element to heat 20 degrees of water until the water temperature reaches 0℃
When the water becomes too high, the ultrasonic vibrator 22 is stopped to prevent the water 20 completely collected in the water tray 15 from freezing.

On the other hand, when the water 20 is collected in the water tray 15 and the water surface height gradually increases, the water surface height detection means 21 of the water tray 15
Also, the oscillation circuit 25 of the ultrasonic vibrator 22 of the sprayer 18
The mist A can be sprayed from the spray hole 23 of the sprayer 18 by energizing it and vibrating at a predetermined frequency that is optimum for spraying. Furthermore, after passing through the outdoor heat exchanger 13, the blown air, which is indicated by the arrow, is sent out from the outdoor air outlet 17 of the main body 11. By accelerating the discharged Hp, it is possible to scatter it to a distant place. can.

Effects of the Invention As described above, the present invention provides an outdoor heat exchanger and an outdoor blower that sends heat-exchanged air through an outdoor heat exchanger to the outdoors from an outdoor outlet of an air conditioner main body; A water tray disposed below the outdoor heat exchanger and extending below the outdoor outlet of the air conditioner main body; a sprayer having an ultrasonic vibrator provided below the outdoor air outlet of the air conditioner main body; an oscillation circuit for operating the vibrator; a control circuit for controlling the frequency of the oscillation circuit; By providing a detection means for detecting the water surface height and water temperature of the collected water, the discharge air blown out from the outdoor outlet can accelerate the mist discharged, and the mist can be transferred to the outdoor side of the main body. It can be dispersed far away without lingering in the vicinity.

Also, by changing the oscillation frequency of the ultrasonic transducer,
Due to the atomization of water, the atomizer itself can be used as a heating element, and even in winter, the water collected in the water tray can be prevented from freezing. Further, by providing a detection means for detecting the height of the water surface of the water collected in the water tray, it has various advantages such as being able to eliminate idle operation of the sprayer.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the internal configuration of an air conditioner according to an embodiment of the present invention, FIG. 2 is a rear view of the air conditioner,
Figure 3 is a flowchart showing the operation of the wastewater treatment device for a part of the air conditioner, Figure 6 is a circuit diagram of the main parts of the wastewater treatment device of the air conditioner, and Figure 7 is a conventional air conditioner. FIG. 8 is a side view showing a state in which the air conditioner is installed in a window, and FIG. 8 is a longitudinal sectional view of the air conditioner. 11...Air conditioner body, 13...Outdoor heat exchanger, 14...Outdoor blower, 15.
...Water tray, 17...Outdoor outlet, 18
... Sprayer, 21 ... Water surface height detection means, 22 ... Ultrasonic vibrator, 23 ...
Sprayer nozzle, 24...Water temperature detection means, 25
...Oscillator, 26...Control device. tS-Ichicho Sagigi Z4=yFr4TSTakuen 5th figure 11-1 water surface height decision ai suction 261-'+1? ]Fuzhuo-myo] "Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] an outdoor side heat exchanger, an outdoor side blower for sending the heat-exchanged air that passes through the outdoor side heat exchanger to the outdoors from an outdoor side outlet of the air conditioner main body; A water tray is provided below and extends below the outdoor air outlet of the air conditioner main body, and a water tray is installed in the air conditioner main body to atomize the water collected in the water tray. a sprayer having an ultrasonic vibrator provided below the outer outlet; an oscillation circuit that operates the vibrator; a control circuit that controls the frequency of the oscillation circuit; and a water surface of the water collected in the water tray. A wastewater treatment device for an air conditioner equipped with a detection means for detecting height and water temperature.