KR100393840B1 - Air conditioner - Google Patents

Abstract

Even when used in closet, it can dehumidify properly and reduce power consumption without shortening compressor life.

An air inlet and an exhaust port provided in the main body case, a blower that intakes air from the inlet port and exhausts it from the exhaust port in the air passage communicating with the inlet port and the exhaust port, and an evaporator for cooling the air intaken from the inlet port by the blower. At the same time, the evaporator is provided with a compressor for circulating a refrigerant to cool the evaporator, and the air conditioner capable of dehumidifying the inside of the closet includes: a state in which at least one of the blower and the compressor is stopped for a first predetermined time; Control means for controlling the intermittent operation of repeating the state of operating the blower and the compressor for a second predetermined time is provided.

Description

Air Conditioner {AIR CONDITIONER}

The present invention relates to an air conditioner for dehumidifying indoor air such as a dehumidifier and a cold air fan that can be used in a closet.

Conventionally, this type of air conditioner includes an evaporator for cooling and condensing air passing through the main body case, a compressor for circulating refrigerant to cool the evaporator, and an air sucked in the main body case through the evaporator. A blower which blows out of the main body and a humidity sensor that detects the humidity of the air sucked into the main body, and at the same time, when the humidity sensor detects a humidity higher than the first preset humidity, the blower and the compressor are driven to dehumidify. It is known to control the compressor and the blower to stop when the operation is performed and when the temperature falls below the second set humidity lower than the first set humidity so that the humidity between the first set humidity and the second set humidity is maintained.

Such an air conditioner has a small (about 10%) difference between the first set humidity and the second set humidity so as to keep the room humidity at a comfortable humidity.

When this air conditioner is used in a closet compared to a room or the like, the closet is lower than the second set humidity in a short time from the state higher than the first set humidity, and the compressor is stopped from the operating state in a short time.

In the closet, the futons and the like containing a lot of moisture are stored. When the compressor is stopped, the humidity rises due to moisture from the futons and the like. .

As described above, since operation and stop are repeated within a short time, the operation state and the stop state of the compressor are frequently repeated, resulting in a problem of shortening the life of the compressor.

In the case where the compressor and the blower are operated continuously to operate, the humidity in the closet suddenly decreases as indicated by the solid line in FIG. 6, and then gradually changes gradually, after which the humidity becomes approximately stable.

In this way, even though the humidity was in a substantially stable state, even if the compressor and the blower were operated continuously, wasteful operation was continued and wasted electric charges.

An object of the present invention is to provide an air conditioner capable of performing proper dehumidification and reducing power consumption, without shortening the life of the compressor when used for dehumidification of a narrow space such as a closet.

1 is a right side cross-sectional view of an air conditioner showing an embodiment of the present invention.

2 is a front sectional view of the air conditioner.

3 is a left side cross-sectional view of the air conditioner.

4 is a front view when an air conditioner is used in a closet.

Fig. 5 is a flow chart in the power saving mode of the air conditioner.

Fig. 6 is a diagram showing a relationship between humidity and time when an air conditioner is used in a closet.

Fig. 7 shows the relationship between humidity and time when the closet is opened and closed during intermittent operation using an air conditioner in the closet.

(Explanation of symbols for the main parts of the drawing)

1. Main Unit 2. Left Case

3. Right Case 5. Main Body Case

5a. Front 5b. back side

7a, 7b. Intake vent 9. Exhaust vent

10. Protrusions 11. Partition plate

12. Blower 13. Evaporator

14. Condenser 15. Blower

16. Fan Guide 17. Motor

18. Sirocco fan 19. Intake hole

20. Control part storage case 21. Support part

22. Humidity sensor 23. Machine room

24. Partition plate 26. Drainage tank

27. Compressor 29. Handle

30. Floater 31. Magnet

32. Sensor 33. Control panel

35. Futon 36. Closet

37. The wall of the closet

A first means for solving the above-mentioned problems is provided with an air inlet and an exhaust port in a main body case, and a blower which intakes air from the inlet port and exhausts it from the exhaust port in a ventilation path communicating with the inlet port and the exhaust port, In the air conditioner which installs the evaporator which cools the air inhaled from the inlet by a blower, and installs the compressor which circulates a refrigerant in this evaporator, and cools the evaporator in a main body case, The air conditioner which can dehumidify the inside of closet. And control means for controlling intermittent operation of repeating at least the compressor for the first predetermined time stop and the state for operating the blower and the compressor for the second predetermined time.

In the above configuration, it is preferable to provide changing means for changing the first predetermined time or the second predetermined time of the intermittent operation.

Further, the control means preferably controls to perform the initial operation of continuously operating the blower and the compressor for a third predetermined time longer than the first predetermined time and the second predetermined time before performing the intermittent operation.

In addition, it is preferable to provide a changing means for changing the third predetermined time of the initial operation described above.

Further, a humidity sensor for detecting the humidity of the air sucked into the main body case is provided, and the control means stops the blower and the compressor without intermittent operation when the humidity sensor detects a predetermined humidity or more. It is desirable to control to operate continuously.

(Example)

Embodiments of the present invention are shown in Figs. 1 to 7 and will be described next based on these drawings.

In Fig. 1, an air-conditioning base body (herein, a dehumidifier is referred to herein as a main body) having a horizontal cross section having a rectangular shape, the short side is used as the front surface 5a so that it can be used even in a narrow place.

The outer surface of the main body 1 is composed of a left case 2 made of synthetic resin, a right case 3, and a main body case 5 made of a bottom plate 4.

Inlet openings 7a and 7b of the grill structure are formed on the upper part 5a and the upper part 5b of the main body case 5, respectively, and as shown in FIG. (9) is formed.

Denoted at 10 is a protruding portion provided on the rear side of the main body case so that the inlet port 7b is not closed even when the rear side 5b side is in close contact with a wall or the like.

11 is a partition plate provided in the main body case 5, and partitions the inside of the main body case 5 to upper part and lower part.

12 is a ventilation path formed in the upper part of the main body case 5 partitioned by said partition plate, and the path | route from the said intake port 7a and 7b to the exhaust port 9 is formed.

In the air passage 12, a filter (not shown) for removing dust from the air sucked from the inlets 7a and 7b is provided near the inlets 7a and 7b to cool the air from which the dust has been removed. An evaporator 13 for dehumidifying, a condenser 14 cooled with air dehumidified by the evaporator 13, and a blower 15 for sucking air from the inlets 7a and 7b and blowing it out of the exhaust port 9 are provided in the path. Therefore, it arrange | positions in order toward the exhaust port 9 side.

The blower 15 includes a motor 17 installed in the fan guide 16 installed on the partition plate 11 and a sirocco fan 18 provided on the rotation shaft of the motor 17.

The fan guide 16 has a control part storage case which is formed larger than the motor 17 and has a concentric intake hole 19 with the motor 17, and in which a control part (not shown), such as a control board, is accommodated. The fan guide 16 is fixed while the control part storage case 20 is fixed to the right case 2 and the left case 3 at the same time as 20 is provided.

In addition, a bottom surface of the control part storage case 20 is integrally provided with a support portion 21 which is installed on an upper surface of the partition plate 11 and a projection 20a for fitting the evaporator 13 and the condenser 14. Formed.

22 is a humidity sensor positioned above the evaporator 13 and fixed to the lower surface of the control part storage case 20, and detects the humidity of the air sucked from the intake ports 7a and 7b. The humidity of the back is detected.

23 is a machine room formed in the lower part of the main body case 5 partitioned by the partition plate 11, This machine room 23 is partitioned back and forth by the partition plate 24 which supports the partition plate 11. As shown in FIG.

In the front side partitioned by the partition plate 24 of this machine room 23, the accommodating part 25 is formed with the partition plate 24 and the main body case 5, and the evaporator 13 is provided in this accommodating part 25. The drainage tank 26 in which the dew condensation formed in the crust is accumulated is stored freely.

In addition, the rear side partitioned by the partition plate 24 of the machine room 23 constitutes a refrigerating cycle together with the above-described evaporator 13, the condenser 14, and the like, and the refrigerant passes through the evaporator 13, the condenser 14, and the like. The compressor 27 which circulates is arrange | positioned.

The drainage tank 26 is formed in a box shape with an upper side open, and a handle 29 for attaching and detaching the drainage tank 26 is formed at a substantially central portion of the front lower portion of the drainage tank 26. .

30 is a floater in which the rotating shaft is rotatably supported in the drain tank 26, and foamed styrol (not shown) is installed at one end to increase buoyancy, and a magnet 31 for full water detection is attached at the other end. The one end side of the floater 30 is supported by the support which is not shown in figure, and is in a horizontal state.

32 is a full water detection sensor provided in the partition plate 11 at a position opposed to the magnet 31.

When the magnetic force of the magnet 31 cannot be detected by this sensor 32, a full state is detected by the control part which is not shown in figure.

33 is an operation unit formed on an inclined surface descending to the front surface 5a side on the front surface 5a side of the upper surface of the main body case 5, which is a switch for driving and stopping the main body 1 (not shown) and an indicator indicating its operation state. When the LED and the drainage tank 26 are detected, the operation panel is provided with a dehumidifying water drain request indicator for urging drainage, and the LED and the like are easily identified from the front surface 5a side.

Next, operation | movement of the main body 1 comprised as mentioned above is demonstrated.

When the switch on the operation panel of the operation unit 33 is turned ON, the operation is started, and the refrigerant 27 returns to the compressor 27 via the evaporator 13, the condenser 14, and the like by the drive of the compressor 27. The heat is absorbed by the evaporator 13 and the heat is released by the condenser 14.

At the same time, the outside air such as a room installed by the driving of the motor 17, the closet 36, or the like is inside the main body 1 from the inlet 7 formed in the front 5a and the rear 5b of the main body case 5. After the dust is removed by a filter (not shown), it is cooled and dehumidified when passing through the evaporator 13.

The cold air after dehumidification is heated in the condenser 14, and then returned to the room, the closet 36, or the like installed from the exhaust port 9.

Moisture condensed in the evaporator 13 drops into the partition plate 11 as water droplets and flows into the drain tank 26 through the drain hole 34 formed in the bottom of the partition plate 11.

When the dehumidified water in the drain tank 26 is equal to or greater than a predetermined amount, the tip of the floating unit 30 rises and the magnet 31 falls off from the sensor 32 so that the water level is detected by the controller. In addition, operation stops and lights up the dehumidification request indicator installed on the operation panel.

The user grasps the handle 29 of the drain tank 26 and pulls out the drain tank 26 from the inside of the main body 1 by seeing the lighting of the dehumidification water drain request indicator.

After the water in the drain tank 26 is discarded, the drain tank 26 is mounted in the main body 1 again.

As a result, the water level is eliminated, and the dehumidification operation is started again.

Next, the case where it is used in a place with storage items, such as a closet, is demonstrated.

As shown in FIG. 4, when the main body 1 is installed in the closet 36 in which the Futon 35 and the like are accommodated, the front side 5a of the short side is provided as a front surface so that it can be installed in a narrow space.

At this time, the left and right directions of the main body case 5, that is, the side surface side of the main body case 5 are adjacent to the bed line 35 or the wall surface 37 of the closet, but the inlet port is provided on the side surface 5c of the main body case 5. As a result, the futon 35 and the closet wall 37 are not obstructed.

On the other hand, in the front-rear direction of the main body case 5, when the main body case 5 is pushed and installed in the closet 36, the back side 5b side of the main body case 5 faces the wall 39 of the closet. However, since the protruding portion 10 protrudes from the rear surface 5b of the main body case 5, the protruding portion 10 abuts against the wall 39 of the closet even if it is pushed in any way, so that the intake opening on the rear surface 5b side A gap is secured between 7b and the wall 39 of the closet.

Therefore, since the intake air is ensured without closing the intake port 5b by the closet wall 39, dehumidification can be reliably performed.

Next, operation control in the case of using in the closet 36 is demonstrated based on the flowchart of FIG.

When the switch for the closet power saving mode (not shown) is pressed in step S1 to operate in the power saving mode, an initial operation in which the blower 15 and the compressor 27 operate continuously is performed in step S2, and the air in the closet 36 is performed. Dehumidification is carried out.

In step S3, it is determined whether or not the preset third set time T3 (50 minutes in the embodiment of the present invention) has elapsed, and when it has elapsed, the initial operation is terminated, and the flow proceeds to step S4, and has not passed. If no, the process returns to step S2.

In step S4, it is determined whether or not the humidity is a predetermined predetermined humidity A (humidity 50% in the embodiment of the present invention) or more, and when less, the intermittent operation shown in step S5 or less is performed.

In step S5, the operation stop which stops the blower 15 and the compressor 27 is performed, and the 1st predetermined time T1 (15 minutes in embodiment of this invention) set shorter than 3rd set time T3 in step S8 has passed. If it is judged whether or not, and if it has not elapsed, it returns to step S5, and when it passes, it transfers to step S7.

In step S7, the continuous operation in which the blower 15 and the compressor 27 operate is performed, and whether the second predetermined time T2 (12 minutes in the embodiment of the present invention) has elapsed by performing this continuous operation in step S8. If it is determined that the elapsed time has not elapsed, the process returns to step S7.

On the other hand, in step S4, when it is more than predetermined humidity A (50% of humidity in embodiment of this invention), it transfers to step S7.

As a result, the operation of the blower 15 and the compressor 27 is maintained without stopping the operation of stopping the blower 15 and the compressor 27.

Next, the humidity change and the operating state in the closet 36 when the air conditioner is used in the closet 36 will be described based on FIGS. 6 and 7.

In the closet 36 which is narrow compared with the room, when the blower 15 and the compressor 27 are operated, the humidity in the closet 36 gradually decreases initially and then gradually gradually, as shown by the solid line in FIG. 6. Even if it changes, after that, even if it carries out continuous operation, a humidity fall will become small and it will be in a substantially stable state.

Here, in the embodiment of the present invention, the continuous operation is performed as the third predetermined time T3 until the humidity decreases and the humidity decreases.

After the third set time T3 has elapsed, the intermittent operation is performed as shown in steps S5 to S8 of the above-described flow chart, and the humidity changes in a zigzag shape as shown by the dashed-dotted line in FIG. 6. Humidity decreases while.

Thus, even if the first predetermined time, the blower 15 and the compressor 27 are stopped during this intermittent operation, the humidity in the closet 36 can be kept lower than the predetermined humidity A, so that the dehumidification can be carried out efficiently while reducing the power consumption. Can be done.

In addition, since the stop and the operation of the compressor 15 can be switched to the first predetermined time T1 and the second predetermined time T2 set in advance regardless of the humidity, the number of times that the compressor 27 stops and repeats the operation is determined. It can be reduced, and the life of the compressor 27 can be extended.

When the closet 36 is opened and closed while the above-described intermittent operation is performed, air containing moisture in the room flows into the closet 36 and the predetermined humidity A is shown as shown after X in FIG. 7. In the form, the humidity in the closet 36 rises above 50%).

When the humidity in the closet 36 becomes higher than the predetermined humidity A by the humidity sensor 22, the blower 15 and the compressor 27 are turned off without stopping the operation of stopping the blower 15 and the compressor 27. It is controlled to maintain the operated state.

When the humidity detected by the humidity sensor 22 becomes less than the predetermined humidity A as time passes, the operation stop for stopping the blower 15 and the compressor 27 is performed, and the intermittent operation is performed again, and the humidity is zig-zag. Lowers while changing to shape.

This makes it possible to dehumidify the inside of the closet 36 while reducing power consumption.

In the case of using in the closet 36 as described above, the inside of the closet 36 can be sufficiently lower than the predetermined humidity A by starting the operation of the compressor 27 and operating the third predetermined time T3 continuously. After the third predetermined time T3 has elapsed, the compressor 27 is intermittently operated by repeating the first predetermined time T1 stop state and the second predetermined time T2 operation state, thereby reducing power consumption without burdening the compressor. It is possible to efficiently dehumidify the inside of the closet 36 while keeping the humidity below the predetermined humidity.

When the humidity sensor 22 detects the predetermined humidity A or more after the initial operation, the closet 36 is controlled to operate continuously without stopping the operation of stopping the blower 15 and the compressor 27. When the humidity in the closet 36 rises and closes, the inside of the closet 36 can be quickly dehumidified to a predetermined humidity A or lower.

In addition, although it is preferable to perform initial operation before intermittent operation like the above-mentioned embodiment, and to make predetermined humidity A or less earlier, you may only perform intermittent operation, without performing initial operation.

In the above-described embodiment, the first predetermined time T1 and the second predetermined time T2 in the intermittent operation and the third predetermined time T3 in the initial operation are set to predetermined values. The changing means may be provided so that the first predetermined time T1, the second predetermined time T2, or the third predetermined time T3 can be changed by the changing means.

In this case, the first predetermined time, the second predetermined time of the intermittent operation, and the third predetermined time T3 of the initial operation can be changed in accordance with the size of the closet 36 in accordance with the size of the closet 36.

In addition, although it is preferable to stop both the blower 15 and the compressor 27 during intermittent operation, and to reduce power consumption, only the compressor 27 may be stopped.

According to claim 1 of the present invention, when used in a closet, by repeating the intermittent operation of repeating the state of stopping the first predetermined time and the operation of the second predetermined time, the power consumption is reduced without burdening the compressor. The inside of the closet can be dehumidified. In addition, according to the present invention, even when the closet is opened or closed, the humidity in the closet can be quickly lowered to or lower than the predetermined humidity.

According to the second aspect of the present invention, the first predetermined time or the second predetermined time of the intermittent operation can be changed by the changing means in accordance with the size of the closet, and the operation can be performed in a state adapted to the size of the closet.

According to claim 3 of the present invention, when used in a closet, by starting the compressor operation and continuously operating for a third predetermined time, the inside of the closet can be sufficiently lower than the predetermined humidity, and after the third predetermined time has passed, The intermittent operation of repeating the third predetermined time stop state and the second predetermined time T2 operation state is performed, thereby keeping the power consumption below the predetermined humidity while reducing the power consumption without putting a burden on the compressor. I can dehumidify.

According to claim 4 of the present invention, the third predetermined time of the initial operation can be changed in accordance with the size of the closet by the changing means, and the operation can be performed in a state in which the closet is adjusted.

Claims (5)

An air inlet and an exhaust port are provided in the main body case, and a blower which intakes air from the intake port and exhausts it from the exhaust port is provided in the air passage communicating with the intake port and the exhaust port, and an evaporator for cooling the air intaken from the intake port by the blower. At the same time, a compressor for circulating a refrigerant in the evaporator to cool the evaporator is installed in the main body case, and the air conditioner capable of dehumidifying the inside of the closet, A humidity sensor for detecting the humidity of the sucked air is provided, and when the humidity detected by the humidity sensor is above a predetermined humidity, the blower and the compressor are operated continuously, and when the humidity detected by the humidity sensor is less than the predetermined humidity, Control means for controlling intermittent operation of repeating at least one of the compressors for a first predetermined time stop and a state for operating the blower and the compressor for a second predetermined time irrespective of humidity; Conditioner. The method of claim 1, And an alteration means for changing the first predetermined time or the second predetermined time of the intermittent operation. The method according to claim 1 or 2, The control means controls to perform the initial operation of continuously operating the blower and the compressor for a third predetermined time set longer than the first predetermined time and the second predetermined time before performing the intermittent operation. Conditioner. The method of claim 3, And an changing means for changing a third predetermined time of the initial operation. delete