JPS61262533A - Drain disposal device for air-conditioning machine - Google Patents

Abstract

PURPOSE:To permit to inject drain against a condenser during room cooling operation and against a predetermined section except an evaporator during room-heating operation by a method wherein an atomizing device, atomizing the drain stagnated in a water-receiving pan and providing the injection of mist with a directivity, is provided in the titled device. CONSTITUTION:During room-cooling operation, an indoor heat exchanger 19 in the main body 18 of the air-conditioning machine is operated as the evaporator, therefore, dew is generated in the indoor heat exchanger 19 and the dew is stagnated in the water-receiving pan 22 through a drain pipe 21. The drain is sprayed against an outdoor heat exchanger 20, operating as the condenser, by the atomizing device 23. In case the condensing capacity is too large, a part of the mist is sprayed against the outdoor heat exchanger 20 by a driving device 24 and the balance of it is discharged to atmosphere. During room heating operation, the indoor heat exchanger 19 operates as the condenser and the outdoor heat exchanger 20 operates as the evaporator, therefore, dew is generated in the outdoor heat exchanger 20 and drain, stagnated in the water receiving pan 22, is discharged to outdoor side by the atomizing device 25. In this case, the atomizing device is turned by 90 deg. from the position of it upon room cooling by the driving device 24, therefore, the spraying mist thereof is discharged to the outside of a room.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides an atomizing device that atomizes drain and has directivity in the direction of ejection; The present invention relates to a drain processing device for an air conditioner equipped with a drive device.

2. Description of the Related Art Conventionally, this type of air conditioner has a structure as shown in FIG. 4, which atomizes drain water and disposes it outdoors.

In the figure, a heat exchanger 2 is provided inside the main body 1, and dew is generated in the heat exchanger 2 by cooling indoor air circulating in the heat exchanger 2 as shown by an arrow 3. do. Directly below this heat exchanger 2, a tray 4 is arranged to receive the drain that falls from the heat exchanger 2.
connected by. Then, the water in the saucer 4 is
It flows through this passage 6 and is supplied to the sprayer 5 in a natural fall manner.

This water is atomized by the atomizer 5 and is ejected into the mist discharge nozzle 7 of the atomizer 5. This mist discharged into the nozzle 7 is discharged outdoors from the mist discharge port 8.In addition, a method for spraying the mist into the condenser during cooling operation is disclosed in Japanese Utility Model Publication No. 56-32818. There is something like the one shown.

This has a structure as shown in FIG. 5. In other words, a propeller 7 and an 10 facing the condenser 9 suck outside air from an outside air intake port, conduct it to the condenser 10, and connect it to an outside air outlet 11.
Discharge from. During cooling operation, drain water is generated in the evaporator 12 and flows into the reservoir 1 via the drain hose 1a.
It accumulates at 4.

The circumferential ends of 77 and 100 blades of the propeller are sequentially immersed in the reservoir 14 as the propeller rotates, and scoop up drain water. The drain water becomes a mist, rides on the wind, and is sprayed onto the condenser 9.

There is also a similar device as shown in Japanese Utility Model Publication No. 56-50339. As shown in Fig. 6, when the disk 16 rotates during cooling operation, the drain accumulated in the water reservoir 16 rotates together with the disk, and the force exerted at the circumferential speed and the centrifugal force cause the disk 15 to rotate. The water is dispersed in small droplets in all directions around the circumference. As a result, water droplets are applied to the upper part of the condenser 17.

Problems to be Solved by the Invention However, although the structure of this type is effective, there are some problems. In the structure shown in FIG. 4, the drain atomized by the sprayer 5 can only be discharged in the direction of the mist discharge nozzle 7 of the sprayer 5. Therefore, it is difficult to improve the condensation efficiency by scattering drain water into the condenser during cooling operation because the condensate mist can only be thrown away outdoors. In addition, when the sprayer 6 is configured with an ultrasonic sprayer, the particle size of the mist of the ultrasonic sprayer is as follows:
Since it is very small, about 10 microns, a large number of ultrasonic spraying elements are required to treat as many as four drain water.

In addition, since a very large amount of fog is generated, the surrounding area becomes cloudy and can be mistaken for a fire in home air conditioners. Furthermore, since ultrasonic spray does not have directivity, in order to make it directional, the direction must be determined using a nozzle, etc., but if this determined direction can be made variable, it will be extremely becomes a complex configuration.

Further, in the case shown in FIGS. 5 and 6, the particles of drain water that have been scooped up are large, so it is difficult to send them outside as mist.

In addition, since the direction of the particles is determined by the direction of raking, it is difficult to provide directivity.

Therefore, the present invention makes it possible to improve the condensation ability by atomizing condensate into a condenser during cooling operation, and to atomize condensate during heating operation using a single atomization device. The material is deposited towards a predetermined area other than the evaporator,
It is an object of the present invention to provide an air conditioner that can eliminate the conventional treatment using a drainage hose.

Means for solving the problems and the technical means of the present invention for solving the above-mentioned problems include a water tray for collecting condensate, a mist of the condensate collected in the water pan, and a mist in the direction in which the mist is spouted. and a directional atomizing device, the driving device is configured to direct the mist of the atomizing device toward a condenser during cooling operation and toward a predetermined part other than the evaporator during heating operation. It has been established.

Effects of the present invention With the above-described configuration, the condensate can be sprayed into the condenser during cooling operation to improve the condensing capacity, and the condensate can be atomized during heating operation. By discharging the water outdoors, it is possible to eliminate the need for treatment with a drainage hose, and it is possible to install an air conditioner even in places where drainage is not possible.

Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings.

FIGS. 1 and 2 are cross-sectional views of the air conditioner in this embodiment.

In Figures 1 and 2, 18 is the air conditioner main body, 19
20 is the indoor heat exchanger that acts as a condenser during heating operation and an evaporator during cooling operation; 20 is the outdoor heat exchanger that acts as an evaporator during heating operation; and a condenser during cooling operation; 21 is the indoor heat exchanger A drain pipe 22 is a water tray for collecting condensate dripping from the evaporator when the indoor heat exchanger 19 and the outdoor heat exchanger 20 act as an evaporator. , 23 is an atomization device, 24
is a driving device for driving the atomizing device 23, and in this embodiment, a stepping motor is used.

FIG. 3 is a sectional view of the atomizing device 2a.

In FIG. 3, 23 is the main body of the atomization device, 25 is a perforated disk-shaped piezoelectric vibrator that is a vibrating part, 26 is a metal plate that is attached to the disk-shaped piezoelectric vibrator 25 and has a small hole 27, and 28
is a cavity in the atomizing device 23 that is bonded to this metal plate 26, and 29 is a supply pipe for feeding liquid into the cavity 28.The operation of the above configuration will be explained.

First, referring to FIG. 1, the cooling operation will be explained.

During cooling operation, the indoor heat exchanger 19 in the air conditioner main body 18 acts as an evaporator, so dew is generated in the indoor heat exchanger 19 by exchanging heat with indoor air. do. This dew drips from the indoor heat exchanger 19, passes through the drain pipe 21, and collects in the water tray 22. The drain collected in the water tray 22 is atomized by an atomizer 23 toward the outdoor heat exchanger 20 functioning as a condenser. At this time, the atomizing device 23 is oriented such that the mist it sprays is applied to the outdoor heat exchanger 20.

By atomizing the drain and spraying it onto the outdoor heat exchanger in this manner, the condensing capacity of the outdoor heat exchanger 20 can be increased. Further, as will be explained later, this atomizing device 23 can be directed in a specified direction by a driving device 24, so if the condensing capacity is too large, a part of the mist is transferred to the outdoor heat exchanger. It is also possible to spray 20 and discharge the residue to the outside air.

Next, referring to FIG. 2, the heating operation will be explained.

During heating operation, the indoor heat exchanger 19 acts as a condenser, and the outdoor heat exchanger 20 acts as an evaporator. Therefore, dew is generated in the outdoor heat exchanger due to heat exchange with the air and accumulates in the water tray 22. The drain collected in this water tray is discharged outdoors by an atomizer 23. At this time, the atomizing device is rotated by 90 degrees from the cooling position by the drive device 24 using a pulse motor, and is oriented in the direction in which the sprayed mist is discharged outside.

Therefore, the drain collected in the water tray during heating operation can be discharged outdoors, eliminating the need for treatment with a drain hose or the like. In particular, atomization makes it possible to treat drains even in places where drains cannot be disposed of by flowing them through a drain hose, such as air conditioners installed in rooms on the aisle side of apartments.

The operation of the atomizing device used in this example will now be explained with reference to FIG.

Between the atomization device main body 23 and the perforated disc-shaped piezoelectric vibrator,
When a voltage of about 50 V is applied, the metal plate 26 having a large number of small holes 27 bends and vibrates. At this time, if the cavity 28 is filled with liquid, the metal plate 26 will bend toward the cavity 28. At this time, the internal pressure inside the cavity nano 28 increases and attempts to push out the liquid inside through the small holes 27. Then, when the internal pressure becomes sufficient to break the surface tension of the liquid, the liquid protrudes from the small holes 27.

Next, as time passes, the internal pressure gradually weakens, and the velocity of the liquid in the cavity 28 becomes slower than the protruding liquid portion, which becomes constricted and the droplets separate and eject. This ejection causes a defect in the cavity 28, so
Due to the negative pressure of the surface tension, liquid is replenished from the supply pipe 29. This supply pipe 29 is connected to the atomizer main body 23.
However, since this connection part is rotatable, even if the direction of the atomizer main body 23 changes during cooling operation and heating operation, it will always stay on the water receiving tray 22 side due to its own weight. It's going down. Therefore, it is possible to always suck up the drain.

In addition, the particle size of the mist ejected from this atomization device is approximately 100
μm compared to the particle size of the mist produced by the ultrasonic vibrator.
Since it is twice as large, it is possible to process a large amount of condensate without using a large number of elements like an ultrasonic transducer to generate a large amount of fog. Furthermore, the particle diameter and direction of the mist generated from this atomization device are determined by the diameter and position of the small holes 27 in the metal plate 26 attached to the disc-shaped piezoelectric vibrator 25. By changing the diameter of 27, the Sidrene processing capacity can be changed. Furthermore, by changing the position of the small hole, the direction of mist ejection can be easily changed, so it is easy to change the direction of mist ejection from the air conditioner main body. Moreover, the metal plate 1
2. Since the device itself vibrates, dirt in the drain does not stick to it, so 1. Breakdowns are rare and the service life is long. Furthermore, the electrical input is also IO to handle 217h of drain.
You don't need W anywhere. Incidentally, if the same amount of drain is processed with an ultrasonic vibrator, an electrical input of a20W is required.

Next, regarding the drive device 24 that drives the atomization device 23, a stepping motor is used in this embodiment. Therefore, depending on the number of pulses given to this motor, it can be moved to any desired position and stopped there.

In the description of this embodiment, the atomizing device 23 is rotated by 90 degrees for heating and cooling, but it is also possible to stop the atomizing device 23 at an intermediate position and change the direction in which the mist is blown out.

The effects described above can be obtained by the present invention.

In this embodiment, the atomization device 23 uses a piezoelectric vibrator, but the same effect can be obtained by using other means as long as the atomization device is directional in the direction of ejection. I can do it. Further, in this embodiment, a stepping motor is used as the driving device 24, but the same effect can be obtained if the stepping motor can be driven in a similar manner by manually switching the mechanism. In addition, although this example describes a window air conditioner in which the indoor and outdoor sides are integrated, the same effect can be obtained in a separate type air conditioner in which the indoor and outdoor sides are installed separately. can get.

Effects of the Invention As described above, the air conditioner of the present invention includes a water tray for collecting condensate, and an atomization device that turns the condensate collected in the water tray into a mist and has directivity in the direction in which the mist is ejected. By providing a drive device that directs the mist of the atomization device to the condenser during cooling operation, and to a predetermined part other than the evaporator during heating operation, during cooling operation. The condensation capacity can be improved by spraying atomized condensate into the condenser, and by discharging the atomized condensate outdoors during heating operation, the condensate treatment with wastewater is eliminated and no drainage is possible. This has the effect of allowing air conditioners to be installed even in difficult locations.

[Brief explanation of drawings]

1 and 2 are cross-sectional views of an air conditioner according to an embodiment of the present invention during cooling and heating, respectively, FIG. 3 is a cross-sectional view of an atomization device according to the same embodiment, and FIGS. 4 and 5 6 are sectional views of different conventional air conditioners. 18...Air conditioner, 19...Indoor heat exchanger, 20...Outdoor heat exchanger, 22...
...Water tray, 23...Atomization device, 24...
...Drive device. Name of agent: Patent attorney Toshio Nakao and one other person
1. - Meal style '8a machine 2θ... View outside the inn 1 natural husband No. 21! l Figure 4

Claims (3)

[Claims] (1) A water tray that collects condensate dripping from the evaporator through heat exchange with air, and an atomization device that atomizes the condensate collected in the water pan and has directivity in the direction in which the mist is ejected; A drain processing device for an air conditioner, comprising: a drive device for directing the spray direction of mist from the atomizing device to a predetermined portion. (2) The drive device operates to direct the spray direction of mist from the atomization device toward the condenser during cooling operation and toward a predetermined portion other than the evaporator during heating operation. Air conditioner drain processing equipment. (3) The atomization device vibrates the drain with a piezoelectric vibrator,
The drain processing device for an air conditioner according to claim 1 or 2, comprising an electronic atomization device that sprays liquid from a nozzle and atomizes the liquid.