JPH0565774B2 - - Google Patents

Description

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

BACKGROUND OF THE INVENTION Generally, when air is cooled by an indoor heat exchanger, moisture in the air condenses to produce drain water. One method for discharging this drain water outdoors is to make it into a mist using a sprayer and discharge it outdoors.

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

FIG. 9 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. FIG. 10 is a sectional view of the conventional air conditioner main body 1 (hereinafter referred to as main body 1) shown in FIG. 9, in which 3 is an indoor heat exchanger, 4 is a water tray, 5 is a sprayer, 6 is a discharge port, 7 is an outdoor heat exchanger.

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

First, dew generated from the indoor heat exchanger 3 by exchanging heat with indoor air is collected in a water tray 4, turned into a mist by a sprayer 5, and then scattered outside from a discharge port 6. That is, as shown in FIG. 9, mist 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 No. 58-85123.

Problems to be Solved by the Invention However, in the above configuration, the sprayer 5
The particles of the mist 2 generated by this have only a small initial velocity given by the vibrator of the sprayer 5, etc., and stay in the vicinity of the outdoor side of the main body 1 in the form of smoke,
There was an inconvenience in that the user felt uneasy as if smoke was being generated due to a malfunction of the equipment.

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 problems, the present invention atomizes drain water generated during cooling operation and molten water generated during the defrosting cycle during heating operation, and causes the fog to accumulate near the outdoor side of main body 1 in a smoky form. 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 wastewater treatment device of the present invention includes an outdoor heat exchanger, and air that passes through the outdoor heat exchanger and is heat exchanged. an outdoor side blower for sending out outdoor air from an outdoor side outlet of the air conditioner main body (hereinafter referred to as the main body), and an outdoor side blower disposed below the outdoor side heat exchanger and below the outdoor side outlet of the main body. a water tray extending from the
In order to atomize the water collected in the water tray,
a sprayer having an ultrasonic vibrator installed below the outdoor air outlet of the main body; an oscillation circuit for operating the vibrator; a control circuit for controlling the frequency of the oscillation circuit; a detection means for detecting water surface height and water temperature; a wind direction control blade for controlling the flow of discharged air in the form of mist; A coil spring made of a shape memory alloy that detects temperature and operates the control vane, and a bias spring that balances the coil spring and regulates the position of the control vane.

Effects With 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. Water temperature is 0℃
When the following conditions exist, increase the oscillation frequency of the oscillation circuit,
The vibration of the ultrasonic vibrator of the sprayer is increased to heat the sprayer itself, thereby preventing the collected water from freezing. Also, due to capillary action, the water at the sprayer's nozzle, which is at a higher water surface height than the water surface height of the water collected in the water tray, is at a water surface height that can be sprayed by the vibration of the sprayer's vibrator. At this time, an oscillation circuit is activated based on a signal that detects the height of the water surface collected in the water tray, so that the ultrasonic vibrator can be vibrated at a predetermined frequency and sprayed. Furthermore, the dispersion speed of the sprayed mist can be accelerated by the discharged 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 misted. It can be discharged in a form.

Furthermore, a coil spring made of a shape memory alloy detects the temperature of the discharged air, and when the temperature of the discharged air is higher than a predetermined temperature, the control blade is tilted toward the outdoor heat exchanger side with respect to the flow direction of the discharged air, so that fog is generated. The discharged air is sucked into the outdoor heat exchanger. Further, when the temperature of the discharge air is less than a predetermined temperature, the control blades are positioned parallel to the flow of the discharge air, so that the discharge air can be blown out straight.

Embodiment A waste water treatment device for an air conditioner according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 8.

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 main body (hereinafter referred to as main body), 12 is an indoor heat exchanger, and 13 is an air conditioner main body.
1 is an outdoor heat exchanger, 14 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, and 17 is an outdoor outlet, 18 is a sprayer, 27 is a control blade, 28 is a coil spring, and 29 is a bias spring.

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

FIG. 4 shows an enlarged view of the main parts of the air conditioner shown in FIG. 3, in which 20 is water collected in a water tray, and 21 is a detection means for detecting the water surface height of water 20 collected in a water tray 15. , 22 is an ultrasonic vibrator of the sprayer 18, 2
3 is an ejection hole of the sprayer 18, and 24 is a water temperature detection means. FIG. 5 is an enlarged plan view of the main parts, FIG. 6 is a flowchart showing the operating conditions and stop conditions of the sprayer, FIG. 7 is a flowchart showing the operation of the control blade 27, and FIG. 8 is a flowchart showing the operation of the control blade 27. Sprayer 18
This figure shows the control circuit.

In the figure, 22 is an ultrasonic vibrator provided in the sprayer 18, 25 is an oscillation device that operates the ultrasonic vibrator 22, and 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, water temperature detection sensor 24
This is a control device that inputs a signal from the ultrasonic vibrator 22 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 of all, considering the cooling operation, the indoor heat exchanger 12
The dew condensed on the surface of the fins is collected in the dew pan 16, drips onto the fin surface of the outdoor heat exchanger 13, and then collected in the water pan 15. Next, considering the heating operation, the outdoor heat exchanger 13 works as an evaporator and causes frost to adhere and grow on the surface of its fins. For example, when the pipe temperature of the outdoor heat exchanger 13 falls below a certain value, the defrosting operation is started. The frost melts and water is stored in the water tray 15 disposed below the outdoor heat exchanger 13.

Especially when considering heating operation, there is a risk that the water collected in the water tray 15 will freeze at a water temperature of 0° C. or lower. and when the temperature of the water 20 is, for example, 0°C or lower, the fifth
As shown in the flowchart in the figure, the oscillation frequency of the ultrasonic vibrator 22 is increased, the atomizer 18 is used as a heating element to heat the water 20, and when the water temperature becomes higher than 0°C, the ultrasonic vibrator 22 is stopped. This prevents the water 20 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 energizes 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 vibrating at a predetermined frequency that is optimal for spraying. moreover,
After passing through the outdoor heat exchanger 13, the mist A discharged from the outdoor outlet 17 of the main body 11 is accelerated by the blown air indicated by the arrow, so that it can be scattered far away.

Further, the coil spring 28 made of a shape memory alloy detects the temperature of the discharge air, and when the temperature of the discharge air exceeds a predetermined temperature, the elastic coefficient of the coil spring 28 changes, causing the control blade 27 to become unbalanced with the bias spring 29, causing the control blade 27 to By tilting the air toward the outdoor heat exchanger 13 with respect to the flow direction, the discharged air containing mist can be sucked into the outdoor heat exchanger 13, and the performance of the outdoor heat exchanger can be particularly improved during cooling.

Furthermore, when the discharge air temperature is lower than a predetermined temperature, the control vane 27 is positioned parallel to the flow of the discharge air by the balance between the coil spring 28 and the bias spring 29, and the control vane 27 is positioned parallel to the flow of the discharge air, so that the discharge air containing the mist A especially during heating can be moved. Suction into the outer heat exchanger 13 can be prevented.

Effects of the Invention As described above, the present invention provides an outdoor blower for sending the heat-exchanged air passing through an outdoor heat exchanger and 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 installing a detection means that detects the water surface height and water temperature of the collected water, it is possible to accelerate the discharged mist by the discharged air blown out from the outdoor outlet, and the mist is moved to the vicinity of the outdoor side of the main body. It can be dispersed far away without being stagnated.

In addition, by changing the oscillation frequency of the ultrasonic vibrator, the sprayer itself can be used as a heating element instead of atomizing water, and even in winter, the water collected in the water tray can be prevented from freezing. can.
Furthermore, by providing a detection means for detecting the water surface height of the water collected in the water tray, it is possible to eliminate idle operation of the sprayer.

Furthermore, a coil spring made of a shape memory alloy detects the temperature of the discharge air, and when the temperature of the discharge air exceeds a predetermined temperature, the elastic modulus of the coil spring changes, causing the control vane to move toward the outdoor heat exchanger in the flow direction of the discharge air. By tilting it to the side, the discharged air containing mist can be drawn into the outdoor heat exchanger, thereby improving the performance of the outdoor heat exchanger during cooling. In addition, when the discharge air temperature is below a predetermined temperature, the control blades can be positioned parallel to the flow of the discharge air to prevent the discharge air containing fog during heating from being sucked into the outdoor heat exchanger. It has various advantages.

[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, and Fig. 3 is a partially cutaway side view of the air conditioner. Figure 4 is an enlarged cross-sectional view of the main part of Figure 3 showing a side view of the air conditioner, Figure 5 is an enlarged cross-sectional view of the main part of the air conditioner, and Figure 6 is the drainage water of the air conditioner. Flowchart showing the operation of the processing device, No. 7
The figure is a flowchart showing the operation of the control blades of the outdoor blower in the air conditioner, Figure 8 is a control circuit diagram of the sprayer in the air conditioner, and Figure 9 shows a conventional air conditioner installed in a window. The side view shown in FIG. 10 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 transducer, 23
...Sprayer nozzle, 24...Water temperature detection means, 2
5... Oscillation device, 26... Control device, 27... Control blade, 28... Coil spring, 29... Bias spring.

Claims (1)

[Claims] 1. An outdoor heat exchanger, an outdoor blower for sending the heat-exchanged air that passes through the outdoor heat exchanger to the outdoors from an outdoor outlet of the air conditioner main body, and the outdoor heat exchanger. A water tray is provided below and extends below the outdoor outlet of the air conditioner main body, and an outdoor outlet of the main unit is provided to atomize the water collected in the water receiver. A sprayer having an ultrasonic vibrator provided below the outlet, an oscillation circuit for operating the vibrator, a control circuit for controlling the frequency of the oscillation circuit, and a water surface height of the water collected in the water tray. and a detection means for detecting water temperature;
At the bottom of the outdoor air outlet and downstream of the atomizer, there is a wind direction control vane that controls the discharged air in the form of mist, and a shape memory alloy that detects the temperature of the discharged air and operates the control vane. A wastewater treatment device for an air conditioner, comprising a coil spring and a bias spring that balances the coil spring and regulates the position of a control blade.