KR102186677B1 - Window type air-conditioner having condensate dry function and method for controlling the condensate dry function - Google Patents

Abstract

The present invention relates to a window type air conditioner having a condensate dry function, and a method for controlling a condensate dry function. The window type air conditioner comprises: a first dry unit and a second dry unit for drying condensate stored in a condensate receiver; and a water level sensor connected to the first dry unit, the second dry unit, and a compressor of the air conditioner through a control unit. The method, on the basis of a water level sensed by the water level sensor, controls modes of: (i) operating the compressor and stopping a dry fan and a pump; (ii) operating the compressor and the dry fan and stopping the pump; (iii) operating the compressor, the dry fan, and the pump together; or (iv) stopping the compressor and operating the dry fan and the pump together. Therefore, the method can prevent the condensate from flooding from the condensate receiver and improve cooling efficiency of the window type air conditioner.

Description

Window type air conditioner including condensate drying function and control method of condensate drying {WINDOW TYPE AIR-CONDITIONER HAVING CONDENSATE DRY FUNCTION AND METHOD FOR CONTROLLING THE CONDENSATE DRY FUNCTION}

The present invention relates to a window-type air conditioner including a condensate drying function and a method for controlling condensate drying, and more particularly, condensed water generated in an evaporator and received in a condensate receiver is mechanically sprayed into a condenser to simultaneously dry condensate and cool the condenser. Thus, it relates to a window type air conditioner and a method for controlling condensate drying, including a condensate drying function capable of preventing condensate from overflowing and increasing cooling efficiency.

The recent window air conditioner has a structure in which an indoor unit (evaporator) and an outdoor unit (condenser) are integrally built into the case, and because it separately includes a window frame installation frame that is installed on the window, it is easily installed by the user, not a professional engineer. It becomes possible.

In particular, since the rear surface of the air conditioner facing the outside does not protrude to the outer wall, when installed on a double window frame, the outer window can be closed when not in use.

On the other hand, since the window-type air conditioner is installed directly on the window frame or window, when a hose for discharging the condensed water generated from the evaporator is connected to the outside, it is necessary to add a configuration to prevent interference between the hose and the window. There was a disadvantage that the hose protrudes outside to be discharged into the air, so it is not good in appearance.

Korean Patent Publication No. 10-2000-0020818 (2000.04.15)

The present invention was conceived to solve the problems of the prior art, and an object of the present invention is to mechanically spray the condensate generated in the evaporator and dropped onto the condenser using a drying fan or spray it on the surface of the condenser through a pump. It is to provide a window-type air conditioner and a condensate drying control method including a condensate drying function capable of further enhancing cooling efficiency by preventing condensate from overflowing from the condensate receiver by effectively evaporating the condensate water and cooling the condenser.

In order to achieve the above object, the window type air conditioner according to the present invention,

case;

An evaporator installed in the case and installed to face the indoor side;

An evaporator fan disposed in the case and installed adjacent to the evaporator;

A condenser installed in the case and installed facing the outdoor side;

A condenser fan disposed in the case and installed adjacent to the condenser;

A lower cover part coupled to the lower part of the case and including a condensed water receiver for receiving condensed water falling from the evaporator; And,

It is configured to include a condensed water drying unit consisting of a first drying unit and a second drying unit to dry the condensed water accommodated in the condensate receiving unit,

The first drying unit,

A drying motor installed on a lower cover outside the condensate receiver; And,

A drying fan connected to the drying motor through a horizontal rotating shaft and spaced apart from the bottom of the condensate receiver in an erect state and rotatably installed,

The second drying unit,

A pump installed outside the condensate receiver; And,

It characterized in that it comprises a spray nozzle connected to the pump.

A water level sensor is installed on the condensed water receiver, and a control unit is connected between the water level sensor and the compressor, the drying motor, and the pump.

The water level sensor includes a plurality of sensing rods extending downward, and at least two heights of the plurality of sensing rods are formed to be different from each other.

The sensing rod is composed of a first sensing rod, a second sensing rod, and a third sensing rod having three different heights, and the distance from the bottom of the condensate receiver to the bottom of the first sensing rod is the condensate receiver from the bottom of the condensate receiver. It is set in the range of 20% to 30% of the height to the overflow hole formed on the side of the condensate receiver, and the distance from the bottom of the condensate receiver to the lower end of the second sensing rod is 55% to the height of the overflow hole from the bottom of the condensate receiver. It is set in the range of 65%, and the distance from the bottom of the condensate receiver to the lower end of the third sensing rod is set in the range of 85% to 95% of the height from the bottom of the condensate receiver to the overflow hole.

The height of the spray nozzle from the drying fan is set in a range of 60% to 100% of the maximum height of the condensed water reached by the drying fan from the drying fan.

On the other hand, the method of controlling condensate drying of the window-type air conditioner according to the present invention,

Based on the water level detected by the water level sensor,

(i) the compressor is running and the drying fan and pump are stopped, or

(ii) the compressor and drying fan are running and the pump is stopped, or

(iii) the compressor, drying fan and pump work together, or

(iv) The operation of the compressor is stopped and the drying fan and the pump are controlled to operate together.

For example, when it is less than 20% of the height from the bottom of the condensate tray to the overflow hole, the compressor works, the drying fan and the pump do not work,

When it reaches the range of 20% to 30%, the compressor and drying fan start and the pump stops,

Compressor, drying fan and pump work together when 55% to 65% range is reached,

When it reaches the range of 85% to 95%, the operation of the compressor is stopped and the drying fan and the pump are configured to work together.

According to the present invention having the configuration as described above, the condensed water is artificially sprayed or sprayed on the condenser by further including a condensed water drying unit consisting of a first drying unit and a second drying unit to dry the condensed water accommodated in the condensate receiver. Since it can be evaporated, the drying effect of the condensed water is greatly improved and the cooling effect of the condenser is increased.

In addition, according to the present invention, since the height of the spray nozzle from the drying fan is set in the range of 60% to 100% of the maximum reached height of the condensed water by the drying fan from the drying fan, the height of the condenser by the drying fan is The evaporation effect of the condensed water is further enhanced and the cooling effect for the condenser is increased by clearly distinguishing the part in contact with the scattered condensate water and the part in contact with the condensed water sprayed by the spray nozzle, thereby enhancing the overall cooling efficiency of the window air conditioner. can do.

In addition, according to the present invention, a water level sensor is installed in the condensate receiver, and a control unit is connected between the water level sensor and the compressor, the drying motor, and the pump, so that a water level detection signal by the water level sensor is transmitted to the control unit, and the control unit is Since this signal is received and the driving signal is transmitted to the compressor, the drying motor, and the pump, there is an advantage that various drying modes are possible depending on the level of the condensate receiver.

Further, according to the present invention, based on the water level sensed by the water level sensor, (i) the compressor operates and the drying fan and the pump stop operating, or (ii) the compressor and the drying fan operate and the pump stops operating, or , (iii) the compressor, drying fan and pump can operate together, or (iv) the operation of the compressor is stopped and the drying fan and pump can be controlled to operate together, preventing condensate from overflowing from the condensate receiver. In addition, it has the advantage of increasing the cooling efficiency of window air conditioners.

1 is a front perspective view of a window type air conditioner according to an embodiment of the present invention.
2 is a rear perspective view of a window-type air conditioner according to an embodiment of the present invention.
3 is a side cross-sectional view of a window-type air conditioner according to an embodiment of the present invention.
4 is a partially inner rear exploded perspective view of a window type air conditioner according to an embodiment of the present invention.
5 is a front perspective view showing a second drying unit and a surrounding configuration in a window-type air conditioner according to an embodiment of the present invention.
6 is a rear perspective view showing a first drying unit, a second drying unit, and surrounding structures in a window-type air conditioner according to an embodiment of the present invention.
7 is a rear perspective view showing a first drying unit, a second drying unit, and surrounding structures in a window type air conditioner according to an embodiment of the present invention.
8 is a rear perspective view showing a first drying unit and a surrounding structure in a window-type air conditioner according to an embodiment of the present invention.
9 is a front cross-sectional view showing a water level sensor and a surrounding structure in a window-type air conditioner according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4, the window-type air conditioner 1000 according to the present invention includes a case 100, an evaporator 200 installed in the case 100 and installed facing the indoor side, and the case ( An evaporator fan 700 disposed in 100) and installed adjacent to the evaporator 200, a condenser 300 installed in the case 100 and installed facing the outdoor side, and disposed in the case 100, the A condenser fan 600 installed adjacent to the condenser 300, a condensate receiver 510 coupled to the lower portion of the case 100 and receiving condensate falling through the condensate outlet 250 from the evaporator 200 And a condensed water drying unit comprising a first drying unit 800 and a second drying unit 900 in order to dry the condensed water accommodated in the condensed water receiving unit 510 and the lower cover part 500 including.

The condenser fan 600 and the evaporator fan 700 have a cylindrical appearance extending in the vertical direction in structure, and outdoor air is removed through the second suction unit 160 with the operation of the condenser fan 600. 2 As it is discharged to the discharge unit 170, the condenser 300 is cooled, and with the operation of the evaporator fan 700, the indoor air comes out to the first discharge unit 150 through the first suction unit 140 The interior of the case 100 is cooled.

The shape of the condenser fan 600 and the evaporator fan 700 need not be limited to a cylindrical shape.

In addition, the window type air conditioner 1000 according to the present invention constitutes a cooling cycle in the case 100, but includes an expansion valve and a compressor, which are not shown.

As shown, the lower cover part 500 is provided as a container-shaped member provided to cover the entire lower part of the case 100, and the condensate water receiver 510 occupies a part of the lower cover part 500 Can be configured to

Of course, the condensed water receiver 510 may be configured to occupy the entire lower cover part 500 and the lower cover part 500 to cover a part of the lower end of the case 100.

In addition, the lower cover part 500 is provided as a container-shaped member provided to cover a part of the lower part of the case 100, and the condensate water receiver 510 is configured to occupy the remaining part of the lower cover part 500 It could be.

In this way, the lower cover part 500 and the condensed water receiver 510 may be disposed under the case 100 in various ways.

On the other hand, since the condensate receiver 510 is disposed directly under the condenser 300, the condensed water contained in the condensate receiver 510 is evaporated by the high heat of the condenser 300 and is naturally discharged to the outdoors. At the same time, the condenser 300 is also cooled by condensed water, so that the thermal efficiency of the air conditioner can be improved first.

In addition, condensed water may be artificially sprayed or sprayed on the condenser 300 by the first drying unit 800 and the second drying unit 900 to evaporate, thereby greatly improving the drying effect and cooling efficiency of the condensed water.

Specifically, as shown in Figs. 6 to 8, the first drying unit 800, through a drying motor 810 installed outside the condensate receiver 510, and a horizontal rotation shaft 820 It includes a drying fan 830 that is connected to the drying motor 810 and is rotatably installed while being spaced apart from the bottom of the condensed water receiver 510 in an erect state.

In this way, since the drying fan 830 is installed above the bottom of the condensate receiver 510, the condensed water contained in the condensate receiver 510 is scattered by the blades of the drying fan 830 and is directed to the condenser 300. The condensed water evaporates quickly and is discharged outdoors.

Of course, the drying fan 830 may be disposed on the front or rear side of the condenser 300, and it is preferable to set the shape of the blade so that it can be blown to the outside.

Moreover, the drying fan 830 is installed inside the condensate receiver 510, and the bottom of the outer circumferential surface of the drying pan 830 is lower than the upper end of the condensate receiver 510 and the bottom of the condensate receiver 510 Are arranged at predetermined intervals, and when the water level is formed to some extent, the rotating drying fan 830 contacts the condensed water to scatter the condensed water.

That is, when the drying fan 830 contacts the condensed water, the condensed water is scattered to the condenser 300 by the rotational force of the drying fan 830 and dried by the high heat of the condenser 300. Is rapidly removed, and at the same time, the condenser 300 is cooled.

Meanwhile, as shown in FIGS. 5 to 7, the second drying unit 900 includes a pump 910 installed outside the condensate receiver 510 and a spray nozzle connected to the pump 910 Includes (920).

Specifically, the pump 910 may be fixedly installed on the bottom of the frame 190 or the lower cover 500 that is fixedly installed inside the case 100, and the pump 910 has an outer condensate receiver 510 It is installed in the lower cover part 500 of the condensate and has an inlet and an outlet for condensed water, so that a suction hose 930 is connected from the inlet to the condensate receiver 510 to introduce condensed water, and the condensate receiver from the outlet The discharge hose 940 is extended to the rear surface of the condenser 300 through the upper end of 510 to supply condensed water to the spray nozzle 920.

In this case, the discharge hose 940 is formed to be bent toward the top and is configured to face the front or rear surface of the condenser 300 so that the condensed water is preferably sprayed upward from the bottom.

In particular, when the condenser 300 is viewed from the rear, the discharge hose 940 is formed to be inclined toward the inside of the condenser 300 with respect to a vertical line, so it is possible to widely drain the condensed water on the rear surface of the condenser 300. .

The undescribed component number 970 is a filter.

An installation groove 191 is formed convexly toward the condenser 300 in the frame 190, and an installation hole 192 is formed at an upper end of the installation groove 191 to penetrate the spray nozzle 920 for the installation. It can be coupled to the installation hole 192 from the inside of the groove 191.

Because the spray nozzle 920 is fixed inside the installation groove 191, it is possible to prevent the spray nozzle 920 from shaking during operation of the air conditioner, and to adjust it to direct the desired precise direction.

It is preferable that the spray nozzle 920 is provided with a screw coupling piece 921 so that it can be fixedly coupled with a screw or the like inside the installation groove 191.

In addition, it is preferable that the formation direction of the installation hole 192 is formed to be inclined toward the center of the width direction of the condenser 300 so that the sprayed condensate is sprayed relatively widely from the front or rear surface of the condenser 300.

In addition, the condensed water sprayed from the spray nozzle 920 by the frame 190 may be blocked from heading to the interior.

On the other hand, the height of the spray nozzle 920 from the drying fan 830 is preferably set in the range of 60% to 100% of the maximum reached height of the condensed water by the drying fan 830 from the drying fan 830 .

Accordingly, when the condenser 300 is viewed from the rear, a portion in contact with the condensed water scattered by the drying fan 830 in the height direction and a portion in contact with the condensed water sprayed by the spray nozzle 920 are clearly distinguished. Accordingly, the evaporation effect of the condensed water is further increased, and the cooling effect for the condenser 300 is increased, so that the overall cooling efficiency of the window-type air conditioner 1000 may be increased.

Meanwhile, a water level sensor 400 may be installed in the condensate receiver 510, and a control unit (not shown) may be connected between the water level sensor 400 and the compressor, drying motor 810, and pump 910.

Accordingly, a water level detection signal by the water level sensor 400 is transmitted to the control unit, and the control unit receives this signal and transmits a driving signal to the compressor, drying motor 810 and pump 910.

As shown in FIG. 9, the water level sensor 400 includes a plurality of sensing rods 410 extending downward, and the plurality of sensing rods 410 have different heights to measure multiple water levels. It is desirable to be able to.

Specifically, the sensing rod 410 is composed of a first sensing rod 411, a second sensing rod 412 and a third sensing rod 413 having three different heights, and the condensed water receiver 510 The distance from the bottom of the first detection rod 411 to the bottom of the condensate receiver 510 is set in the range of 20% to 30% of the height from the bottom of the condensate receiver 510 to the overflow hole 515 formed on the rear surface of the condensate receiver 510 The distance from the bottom of the condensate receiver 510 to the lower end of the second detection rod 412 is set in a range of 55% to 65% of the height from the bottom of the condensate receiver 510 to the overflow hole 515, and , The distance from the bottom of the condensate receiver 510 to the lower end of the third sensing rod 413 should be set in a range of 85% to 95% of the height from the bottom of the condensate receiver 510 to the overflow hole 515. It can be done, allowing three levels of water level measurement.

However, by installing two or four or more detection rods 410, water level detection may be performed in two or four or more steps.

Hereinafter, a control method in which the water level is sensed in three steps and driving for drying and cooling are distinguished for each step will be described.

That is, according to the control method of the present invention,

(i) the compressor operates and the drying fan 830 and the pump 920 stop operating, or

(ii) Only the compressor and drying fan 830 operate and the pump 920 stops operating, or

(iii) the compressor, drying fan 830 and pump 920 work together, or

(iv) The operation of the compressor may be stopped and the drying fan 830 and the pump 920 may be controlled to operate together.

For example, when less than 20% of the height from the bottom of the condensate receiver 510 to the overflow hole 515 (low water level), the compressor of the air conditioner operates and the drying fan 830 and the pump 920 do not operate, 20% When reaching the range of ~30% (low water level), the compressor and drying fan 830 operate and the pump 920 stops, and when reaching the range of 55% ~ 65% (medium water level), the compressor and drying fan 830 And the pump 920 operates together, and the operation of the compressor is stopped when the range of 85% to 95% (high water level) is reached, and the drying fan 830 and the pump 920 may be configured to operate together.

Accordingly, it is possible to reliably prevent the condensed water flowing into the condensed water receiver 510 from leaking through the overflow hole 515 and flowing into the room while the air conditioner is operating.

In addition, through the test, when compared to the air conditioner without the drying fan 830 and the pump 920, when the range reaches 20% to 30%, the compressor and the drying fan 830 operate and the pump 920 stops operating. Through this, it was confirmed in test that the cooling efficiency of the window-type air conditioner increases by an average of about 3%, and when it reaches the range of 55% to 65%, the compressor, drying fan 830 and pump 920 work together. In addition, it was possible to confirm an increase in efficiency of about 1% on average.

It is assumed that the window-type air conditioner 1000 starts to operate from the OFF state.

First, when the compressor is started according to the operation of the air conditioner, since there is no condensed water in the condensate receiver 510, the water level is not detected, and the drying fan 830 and the pump 920 maintain the stopped operation.

As the compressor continuously operates, condensate (defrost water) generated from the evaporator 200 flows into the condenser receiver 510, so that the water level is 25% of the height from the bottom of the condensate receiver 510 to the overflow hole 515 (low water level) When it reaches to, detection by the first sensing rod 411 of the water level sensor 400 is performed, and accordingly, rotational driving of the drying fan 830 is performed.

Despite the artificial evaporation of the condensate by the drying fan 830, the amount of condensate flowing in becomes larger, so that the water level is 60% of the height from the bottom of the condensate receiver 510 to the overflow hole 515 (medium water level) When it reaches to, detection by the second detection rod 412 of the water level sensor 400 is performed, and accordingly, the drying fan 830 and the pump 920 are simultaneously driven (maximum drying function).

If, despite the artificial evaporation of condensed water by simultaneous driving of the drying fan 830 and the pump 920, the amount of condensed water that is introduced becomes larger, so that the water level increases from the bottom of the condensate receiver 510 to the overflow hole 515 ) To 90% of the height (high water level), detection by the third sensing rod 413 of the water level sensor 400 is performed, and accordingly, the drive of the compressor is stopped and the drying fan 830 and the pump 920 ) Is simultaneously driven.

When the compressor is stopped and the water level is lowered by simultaneous driving of the drying fan 830 and the pump 920 and reaches 60% of the height from the bottom of the condensate receiver 510 to the overflow hole 515, the compressor is stopped. It is restarted and cooling is achieved.

The embodiments of the present invention are merely exemplary, and those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible within the scope of the following claims.

100... case
200... evaporator
300... condenser
400... water level sensor
500... lower cover part
510... condensate tray
600... condenser fan
700... evaporator fan
800... 1st drying unit
810... drying motor
820... axis of rotation
830... drying pan
900... 2nd drying unit
910...pump
920... spray nozzle
1000... window air conditioner

Claims (7)

case;
An evaporator installed in the case and installed to face the indoor side;
An evaporator fan disposed in the case and installed adjacent to the evaporator;
A condenser installed in the case and installed facing the outdoor side;
A condenser fan disposed in the case and installed adjacent to the condenser;
A lower cover part coupled to the lower part of the case and including a condensed water receiver for receiving condensed water falling from the evaporator; And,
It is configured to include a condensed water drying unit consisting of a first drying unit and a second drying unit to dry the condensed water accommodated in the condensate receiving unit,
The first drying unit,
A drying motor installed on a lower cover outside the condensate receiver; And,
A drying fan connected to the drying motor through a horizontal rotating shaft and spaced apart from the bottom of the condensate receiver in an erect state and rotatably installed,
The second drying unit,
A pump installed outside the condensate receiver; And,
It includes a spray nozzle connected to the pump,
A frame fixedly installed inside the case and disposed between the condenser and the evaporator has an installation groove formed convexly toward the condenser, and an installation hole is formed at the upper end of the installation groove so that the spray nozzle is formed of the installation groove. A window-type air conditioner, characterized in that it is coupled to the installation hole from the inside, and a screw engaging piece is installed in the spray nozzle to be coupled by a screw to the inside of the installation groove. The method of claim 1,
A water level sensor is installed on the condensed water receiver, and a control unit is connected between the water level sensor and a compressor, a drying motor, and a pump. The method of claim 2,
The water level sensor includes a plurality of sensing rods extending downward, and at least two heights of the plurality of sensing rods are formed differently from each other. The method of claim 3,
The sensing rod is composed of a first sensing rod, a second sensing rod, and a third sensing rod having three different heights, and the distance from the bottom of the condensate receiver to the bottom of the first sensing rod is the condensate receiver from the bottom of the condensate receiver. It is set in the range of 20% to 30% of the height to the overflow hole formed on the side of the condensate receiver, and the distance from the bottom of the condensate receiver to the lower end of the second sensing rod is 55% to the height of the overflow hole from the bottom of the condensate receiver. It is set in the range of 65%, and the distance from the bottom of the condensate receiver to the lower end of the third sensing rod is set in the range of 85% to 95% of the height from the bottom of the condensate receiver to the overflow hole. The method of claim 1,
The height of the spray nozzle from the drying fan is set in the range of 60% to 100% of the maximum height of the condensed water reached by the drying fan from the drying fan. delete case;
An evaporator installed in the case and installed to face the indoor side;
An evaporator fan disposed in the case and installed adjacent to the evaporator;
A condenser installed in the case and installed facing the outdoor side;
A condenser fan disposed in the case and installed adjacent to the condenser;
A lower cover part coupled to the lower part of the case and including a condensed water receiver for receiving condensed water falling from the evaporator; And,
It is configured to include a condensed water drying unit consisting of a first drying unit and a second drying unit to dry the condensed water accommodated in the condensate receiving unit,
The first drying unit,
A drying motor installed on a lower cover outside the condensate receiver; And,
A drying fan connected to the drying motor through a horizontal rotating shaft and spaced apart from the bottom of the condensate receiver in an erect state and rotatably installed,
The second drying unit,
A pump installed outside the condensate receiver; And,
It includes a spray nozzle connected to the pump,
In the condensate drying control method of a window type air conditioner in which a water level sensor is installed in the condensate receiver, and a control unit is connected between the water level sensor and a compressor, a drying motor and a pump,
Based on the water level detected by the water level sensor,
When it is less than 20% of the height from the bottom of the condensate receiver to the overflow hole formed on the side of the condensate receiver, the compressor operates and the drying fan and pump do not operate.
When it reaches the range of 20% to 30%, the compressor and drying fan start and the pump stops,
Compressor, drying fan and pump work together when 55% to 65% range is reached,
When it reaches the range of 85% ~ 95%, the operation of the compressor is stopped and the drying fan and the pump are configured to operate together.

Images