JPH01260253A - Air conditioner - Google Patents

Abstract

PURPOSE:To discharge water produced through indoor side and outdoor side heat exchangers to the outdoors by a method wherein said water is all collected to an external water receiver and then converted into the form of fog by an ultrasonic atomizer disposed on the outlet port side of an external blower to blow such fog out of an air conditioner without allowing the for to stay in the position on the outdoor side of the air conditioner body. CONSTITUTION:Water produced through an interior heat exchanger during its cooling operation or water produced through an outdoor side heat exchanger by a defrosting operation during its heating operation flows into an external water receiver 11 provided at the lower part of an air conditioner. In this case, when the temperature of the water within the water receiver 11 is lowered to 0 deg. or below during the heating operation, there is the possibility of freezing of the water; therefore, the oscillating frequency of an ultrasonic oscillator 12a is increased, and the water is heated by utilizing an ultrasonic atomizer 12 as a heating element. On the other hand, when the water is accumulated in the water receiver 11 and a water level detector 13 detects that the accumulated water has reached a predetermined height, power with a predetermined frequency is supplied to the ultrasonic oscillator 12a to operate the atomizer 12 to eject fog through an ejecting port 12b, and the fog is dispersed away by air blown out of an external blower. Thus, the external vicinity can be prevented from being wetted due to the recombination of fog particles.

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 for discharging this 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. 7 is a side view showing a conventional air conditioner installed in a window, and FIG. 8 is a sectional view of the same air conditioner. In FIG. 7, 31 is an air conditioner main body (hereinafter simply referred to as the main body), and inside it, from top to bottom, there are an indoor air conditioner 32, an indoor heat exchanger 33, an outdoor air blower 1i 34, and an indoor air conditioner 1i 34. An outside heat exchanger 35 is arranged, and a water tray 36 is arranged at the bottom of the indoor heat exchanger 33 to receive condensed water generated during cooling, and a water tray 36 is placed at a position closer to the outside air (closer to the window). An ultrasonic sprayer (hereinafter simply referred to as sprayer) 37 is provided for spraying accumulated water outdoors.

In the above configuration, the condensed water generated in the indoor heat exchanger 33 accumulates in the water tray 36, and is atomized by the atomizer 37 as shown in FIGS.
It was being discharged outdoors.

Problem to be Solved by the Invention However, according to the above configuration, the fog particles generated by the injector 37 do not have a small initial velocity given by the vibrator of the rq1 fogger 37, and therefore the main body It accumulates in the form of smoke near the outside of the room, giving the user a sense of unease as if smoke is being generated due to equipment failure, and as the particles recombine and become larger, the area around the outside of the room becomes wet. There was a problem with this. 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 makes condensed water generated during cooling operation and molten water generated during the defrosting cycle during heating into dew, without causing the fog to accumulate near the outdoor side of the main unit. The purpose of the present invention is to provide an air conditioner that can discharge air to the outdoors.

Means for Solving the Problems In order to solve the above problems, the air conditioner of the present invention includes an indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan 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 for remisting the water in the outdoor water tray using an ultrasonic vibrator is provided at a position corresponding to the outlet of the outdoor blower, and the A water level detector that detects the water level in the outdoor water tray and a water temperature detector that detects the water temperature are provided, and a control device that controls the ultrasonic sprayer based on signals from these water level detectors and water temperature detector. It is.

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 atomizer, and the released mist is also transferred to the outdoor side. It is forcibly discharged outdoors by a blower. In addition, since the ultrasonic r'liM device is controlled based on the water level detector and the water temperature detector, the water temperature is set to a predetermined temperature, for example, 0°C.
If the following conditions occur, the control device can change the frequency applied to the ultrasonic vibrator and use the injector itself as a heating element to prevent water from freezing. Furthermore, even after the air conditioner has stopped, the water that has accumulated in the outdoor water tray can be used to continue operating the water jet by the control device, so that the water level in the water tray is always at its lowest level. be able to.

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 816 are arranged in the indoor space 3, and an outdoor heat exchanger 7 and an outdoor air blower 818 are arranged in the outdoor space 4. Note that the width of the outdoor heat exchanger 7 is slightly narrowed, and a blowing space 9 is formed at a side position corresponding to the air outlet of the outdoor blower 8. An indoor water tray 1o is provided below the indoor heat exchanger 5, and an outdoor water tray 11 is provided below the outdoor heat exchanger 7. The water (dew) accumulated in the indoor water tray 10 is naturally led to the outdoor water tray 11. That is, the outdoor water tray 11 is provided at a lower position than the indoor water tray 10, and one side edge 10a of the indoor water tray 10 is bent downward at a position above the outdoor water tray 11. And the outdoor water tray 11
An ultrasonic atomizer (hereinafter simply referred to as an injector) 12 having an ultrasonic vibrator 12a is provided at a position corresponding to the blowing space 9 inside. Further, inside the outdoor water tray 11, a water level detector 13 for detecting the water level and a water temperature detector 14 for detecting the water temperature are arranged.

Furthermore, inside the main body 1, the above-mentioned sprayer 12 is installed based on the signals from the water level detection device 13 and the water temperature detector 14.
A control device 15 is provided to control the. This control device 15 inputs signals from the water level detector 13 and the water temperature detector 14 to control the oscillation frequency of the oscillation device 16 that operates the ultrasonic transducer 12a, and also controls the oscillation frequency of the oscillation device 16 that operates the ultrasonic transducer 12a. It incorporates a delay circuit that operates the ultrasonic vibrator 12a and the outdoor fan 8 until the water surface level of the water collected in the water tray 11 reaches a predetermined level.

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 10 and then flows into the outdoor water tray 1.
1. Also, during heating operation, the outdoor heat exchanger 7 functions as an evaporator, and when frost adheres and grows on its fin surface and, for example, the pipe temperature of the outdoor heat exchanger 7 falls below a certain value, defrosting operation is started. However, the frost is melted and stored in an outdoor water tray 11 provided below the outdoor heat exchanger 7.

In particular, during heating operation, the water accumulated in the outdoor water tray 11 is reduced to zero.
If the temperature drops below ℃, there is a risk of freezing. Therefore, when the water temperature in the outdoor water tray 11 becomes 0° C. or lower, the control device 15 increases the oscillation frequency of the ultrasonic wave @ mover 12a and uses the sprayer 12 as a heating element, as shown in the flowchart of FIG. When the water temperature becomes higher than 0° C., the ultrasonic vibrator 12a is stopped to prevent the water in the outdoor water tray 11 from freezing. On the other hand, when water accumulates in the outdoor water tray 11 and the water level (h) reaches a predetermined height (for example, hl), a signal from the water level detector 13 is sent to the control device 15, and the control device 15 The oscillation device 16 of the acoustic wave vibrator 12a is energized, and the UaM device 1
2 is activated, and mist is discharged from its jet hole 12b. Of course, the ultrasonic transducer 12a is vibrated at a frequency that provides a suitable atomization. The dew discharged from the ejection holes 12b is scattered far away by the blown air sent out from the outlet of the outdoor air blower 1118. If the water level in the outdoor water tray 11 is high even after the main body 1 has stopped, the delay circuit of the control device 15 will cause the ultrasonic transducer 12a and the outdoor transfer machine 8 to operate until the water level in the outdoor water tray 11 is high. Therefore, at the start of operation, the water level is always at the predetermined water level (minimum water level). Furthermore, the water level detector 13 automatically stops the ejector 12 when the water runs out.

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 injector is placed on the outlet side of the outdoor fan,
The mist emitted from the ejector is forcibly discharged outdoors and does not stagnate as in the past, eliminating the risk of it being misidentified as smoke, and eliminating wetness near the outside of the room due to recombination of mist particles. be able to. Furthermore, since the ultrasonic sprayer is controlled based on the water level detector and water temperature detector, when the water temperature falls below a predetermined temperature, for example, 0°C, by changing the oscillation frequency to the ultrasonic vibrator, 11 from water exposure! ! 1g3 itself can be used as a heating element, and therefore water accumulated in the outdoor water tray can be prevented from freezing even in winter. Also,
If the water level in the outdoor water tray is high after the air conditioner has stopped, the control device can continue to operate the injector to lower it to a predetermined water level (minimum water level). This prevents the water tray from filling up with water.

[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 partially cutaway side view of the air conditioner, Figure 4 is an enlarged sectional view of the main parts of Figure 3, Figure 5 is a control circuit diagram of the air conditioner, and Figure 6 is the air conditioner. A flowchart showing the operation of the conditioner, FIG. 7 is a side view showing a conventional air conditioner installed in a window, and FIG. 8 is a sectional view of the same air conditioner. 1... Air conditioner body, 5... Indoor heat exchanger, 6
...Indoor blower, 7...Outdoor heat exchanger, 8...
・Outdoor side blower, 9... Blowout space, 10... Indoor side water tray, 11... Outdoor side water tray, 12... Ultrasonic wave I! Atomizer, 12a... Ultrasonic vibrator, 13... Water level detector, 14... Water temperature detector, 15... Control device, 16... Oscillator. Agent Yoshihiro Morimoto Figure 1? Figure J 〆Main 4 Figure tz-8'j Hama 4 $1t Hr tz Koishi pull-up 薇First 3 13, Gyu III Ryo Exhibit 14-Water temperature detector Figure 5 15-F° 1 (Engineering P device lb.・Vibration device 56 figure 7 figure 3 figure

Claims (1)

[Claims] 1. An air conditioner in which an indoor heat exchanger, an indoor blower, an outdoor heat exchanger, and an outdoor blower are arranged in the air conditioner main body, the indoor water receiving tray being located below the indoor heat exchanger. An outdoor water tray is provided below the outdoor heat exchanger, and the water in the indoor water tray is guided into the outdoor water tray so that the water in the outdoor water tray is exceeded. An ultrasonic sprayer that sprays using a sonic vibrator is provided at a position corresponding to the outlet of the outdoor side blower, and a water level detector that detects the water level in the outdoor water tray and a water temperature detector that detects the water temperature are provided, An air conditioner comprising a control device that controls the ultrasonic sprayer based on signals from these water level detectors and water temperature detectors.