JPH11159832A - Controller for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dry the inside of an air conditioner body efficiently and surely without requiring any special part, e.g. a wind path, by controlling an indoor fan to a specified blow-out air volume after water cut operation and controlling the blowing direction of a wind direction control plate while performing heating operation thereby drying an indoor heat exchanger. SOLUTION: Means 4 for detecting the end of water cut operation in a water cut operation determining means 1A compares the measurement of a water cut operation time measuring means 2 with a set value (set time) and end the water cut operation when the set time is reached. Alter water cut operation, a drying operation determining means 5 commands a blowing air volume determining means 7 to control the blowing air volume of an indoor fan 11 to a specified value and commands a blowing direction determining means 8 to set a wind direction control plate 12 at a specified position. Furthermore, a compressor 9 and an outdoor fan 10 are provided with a drive command for performing heating operation to dry an indoor heat exchanger.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an air conditioner capable of suppressing the occurrence and propagation of mold and bacteria inside an indoor unit.

[0002]

BACKGROUND OF THE INVENTION Originally, the purpose of using an air conditioner is to enable a user to work in a comfortable and healthy indoor environment. In terms of thermal environment, general air conditioners perform cooling operation in the summer to cool the room to a comfortable temperature, warm in the winter to heat the room in the winter, or dehumidify the humid environment during the rainy season Thus, a comfortable environment is formed, and the effects expected by the user are obtained. However, from the viewpoint of health, measures such as collecting dust in the room with a filter have been taken, and there are many problems. What is particularly problematic is that a large amount of water remains in the air conditioner main body by repeating the cooling operation in the summer or the dehumidifying operation in the rainy season, thereby maintaining a high humidity state. This highly humid environment inside the air conditioner is a very favorable environment for the generation, growth and propagation of mold and other bacteria. Bacteria are generated in large quantities, and mites and the like inhabit inside the air conditioners frequently by feeding on their dead bodies. Mold and other bacteria and ticks grow inside the air conditioner, which emits off-flavors from the air conditioner, and corpses are scattered in the living room, causing occupants to feel uncomfortable. There were also serious problems such as causing symptoms. As a countermeasure against this, a device has been proposed which utilizes the fact that mold and bacteria cannot grow in a low humidity environment, and has a function of making the inside of an air conditioner in an environment where mold and bacteria cannot grow (dry state).

As an air conditioner having a function of drying the inside of the main body, for example, there is an air conditioner disclosed in Japanese Patent Application Laid-Open No. Hei 4-24454 (hereinafter referred to as a first conventional example). FIG. 15 is a system configuration diagram of the air conditioner of the first conventional example.

In FIG. 15, reference numeral 41 denotes an air passage 4 in the main body.
2, a casing 43; an indoor blower 43; an indoor heat exchanger 44; a dew tray 45 for receiving drain water dropped from the indoor heat exchanger 44; a wind direction control plate 46 for changing the blowing direction up and down; A cooling operation time measuring means for measuring an operation time or a dehumidifying operation time, a heating operation means for performing a heating operation based on a cooling operation time measurement signal of a cooling operation time measuring means, and a cooling operation time measuring means for 49. A short circuit means for immediately sucking in the hot air blown out when the heating operation means 48 performs the heating operation based on the measurement signal to perform a short circuit, 51 is a heating operation time measurement means for measuring the heating operation time, 52 is a blower that drives the wind direction control plate 46 based on a signal from the heating operation unit 48 and a signal from the heating operation time measurement unit 51. Is a wind direction determining means.

In the first conventional example, in a normal operation state, the wind direction control plate 46 operates so as to direct the blowing direction in a range from A to B. During the cooling operation of the air conditioner, the cooling operation time measuring means 47 measures the cooling operation time,
When the cooling operation time reaches a certain time, the heating operation means 48 is notified that the cooling operation time has passed for a certain time. The heating operation means 48 starts the heating operation when the cooling operation time measurement means 47 notifies that the cooling operation time has passed for a predetermined time, and immediately sends the warm air blown out to the blowout wind direction determination means 52. A command is issued to direct the wind direction control plate 46 to the position C where the short circuit sucked by the main body is caused. As a result, the warm air blown out is immediately sucked into the main body, and while passing through the air passage 42, the indoor heat exchanger 44, the indoor blower 43, and the casing 4
1. Dry the wind direction control plate 46 and the like to prevent the occurrence of mold.

During the heating operation, the heating operation time measurement means 51 measures the heating operation time, and when the heating operation time reaches a certain time, the heating operation time 48 is communicated with the heating operation means 48 by blowing. The wind direction determining means 52 is notified. When the heating operation means 48 is informed that the heating operation time has passed for a certain period of time from the heating operation time measurement means 51, the heating operation is stopped and the blow-off wind direction determination means 52 is instructed to stop the heating operation. Inform. The blowout wind direction determination means 52 recognizes that the drying operation (not the heating operation in the normal mode) by the short circuit has been completed, based on the time lapse signal from the heating operation time measurement means 51 and the operation stop signal from the heating operation means 48. And
The blowing direction of the wind direction control plate 46 is returned to the range from A to B. The control unit (not shown) returns the operation mode from the drying operation mode to the normal cooling operation mode.

[0007] In addition to the above, as an air conditioner having a function of drying the inside of the main body, for example, there is an air conditioner disclosed in Japanese Patent Application Laid-Open No. 5-114992 (hereinafter referred to as a second conventional example). FIG. 16 is a configuration diagram schematically showing the air conditioner of the second conventional example.

In FIG. 16, 61 is a casing forming an air passage in the main body, 62 is an air inlet, 63 is an air outlet, 64 is an air passage, 65 is an indoor heat exchanger, 66 is an indoor blower, and 67 is an indoor blower. A filter, 68 is a dew receiving tray for receiving drain water dropped from the indoor heat exchanger 65, 69 is a short circuit channel, 71 is an opening / closing plate for opening and closing the short circuit channel 69, and 72a, 72b, 72c are air outlets 63. First to third wind direction control plates that are positioned and rotatably supported.

In the second conventional example, during normal cooling / heating operation, the open / close plate 71 and the wind direction control plates 72a, 72 are provided.
b, 72c are located in the state shown by the virtual line in the figure,
When the indoor blower 66 is driven, the indoor air is sucked from the air suction port 62 as shown by the arrow indicated by the solid line in the figure, supplied to the indoor heat exchanger 65 through the filter 67, and exchanged heat. The heat exchanged air is blown into the room from the air outlet 63 at an angle defined by the wind direction control plates 72a, 72b, 72c. In the heating operation, the opening / closing plate 71, the wind direction control plates 72a, 72b,
72c is controlled to the state shown by the solid line in the figure, and the air blown out through the indoor heat exchanger 65 is supplied and circulated to the indoor heat exchanger 65 directly through the short circuit flow path 69 as shown by the arrow shown by the virtual line in the figure. So that the casing 61
Dry sterilization of the inside.

Further, in addition to the above, as an air conditioner having a function of drying the inside of the main body, for example, Japanese Utility Model Laid-Open No. 4-95244.
(Hereinafter, referred to as a third conventional example). FIG. 17 is a system configuration diagram of the air conditioner of the third conventional example.

In FIG. 17, 81 is a control unit, 82 is setting input means, 83 is an operation mode setting means, 84 is a memory, 85 is a comparing means, 86 is a time integrating means, and 87 is a urge to the user for antifungal operation. Alarm, 88 is a room temperature sensor,
89 is a compressor, 91 is an indoor blower, 92 is an alarm 87
A display means for displaying an alarm generated by the control means 93 is a four-way valve, and 94 is a mold prevention key provided on the operation panel and operated manually.

In the third conventional example, when a predetermined period has elapsed after the air conditioner has finished operating, the control unit 81
Judges the content of the previous operation, and if this is a cooling or dehumidifying operation, gives an alarm 87 and a display means 92 to issue a mold prevention warning. This warning causes the user to press the mold prevention key 94.
Is operated, the control unit 81 causes the air conditioner to perform the heating operation for a certain period of time and the low speed operation of the indoor blower 91 to prevent the growth of mold in the main body.

[0013]

However, in the air conditioner of the first prior art (FIG. 15), the heating operation (drying operation) is forcibly performed during or immediately after the cooling operation. There is a problem that the odor components in the room remaining in the indoor heat exchanger 44, the dew tray 45, and the like are condensed, and the water condensed evaporates to generate an unpleasant odor from the air conditioner, which gives the occupants a discomfort. Also, when the amount of drain water is large and this water remains in the indoor heat exchanger 44, the dew tray 45, and the like, it takes a lot of energy and time to evaporate and dry it, and a large amount of water remains. If the moisture cannot be completely dried, the inside of the air conditioner is made humid, conversely, there is a problem that the growth of mold and bacteria is promoted. Further, the air conditioner body is cooled by the cooling operation, and the indoor heat exchanger 44,
If the heating operation (drying operation) is suddenly performed in a state where moisture remains in the dew receiving tray 45 or the like, the moisture flies immediately after the start of the drying operation, and dew forms on the air conditioner main body, particularly around the outlet, There is also a problem that dust and the like easily adhere there, and the appearance of the air conditioner is significantly impaired.

The air conditioner of the second conventional example (FIG. 1)
In the case of 6), there is a problem that the wind path has a very complicated configuration, which leads to an increase in cost and a tendency to malfunction. Further, during the heating operation (drying operation), since the air path basically takes the form of the internal circulation system, the heating operation (drying operation) is performed in a state where a large amount of moisture remains inside the air conditioner by the cooling operation. When the moisture (steam) is trapped inside the air conditioner and the remaining large amount of moisture cannot be dried, similar to the air conditioner of the first conventional example described above,
On the contrary, there is a problem that the inside of the air conditioner is made to be in a humid state, and the growth of mold and bacteria is promoted.

The third conventional air conditioner (FIG. 1)
In the case of 7), the drying is performed in the air conditioner main body, and the room temperature is increased by performing the heating operation without consideration for the indoor environment, and the temperature is generated when the moisture in the air conditioner main body evaporates. There was a problem in that an unpleasant odor was discharged into the indoor living area, giving the occupants a feeling of discomfort. Furthermore, if the heating operation is performed in a state where a large amount of water remains in the air conditioner due to the cooling operation, not only a large amount of energy and time is required to evaporate and dry the air, but also a further increase in room temperature is required. In the case where the problem is caused and the large amount of remaining water cannot be completely dried, similarly to the air conditioner of the first conventional example described above, the inside of the air conditioner is made to be in a humid condition, and the growth of mold and bacteria grows. There was a drawback that encouraged.

The technical problem of the present invention is that it does not require special air passages and other components, can be constructed at a low cost, can efficiently and reliably dry the inside of the air conditioner body, and can reduce energy consumption during drying. Therefore, it is possible to reduce the influence on indoor living areas without generating an off-flavor.

[0017]

According to a first aspect of the present invention, there is provided an air conditioner control apparatus comprising: a refrigeration cycle including a compressor, an indoor heat exchanger, an outdoor heat exchanger, an indoor blower, an outdoor blower, and an indoor blower. Control means for determining the number of rotations of the indoor blower and controlling the airflow rate of the air conditioner, and an airflow direction control board for the air conditioner having an airflow direction control plate for changing the direction of the air blown from the air conditioner body Blow-off wind direction determining means for determining the blow-off wind direction; draining operation determining means for determining the content of a draining operation for draining water adhered to the indoor heat exchanger after the cooling operation or the dehumidifying operation; and blowing the indoor blower after the draining operation. The indoor heat exchanger is controlled by the air flow rate determining means to control the predetermined blowing air volume, the wind direction control plate is controlled by the blowing air direction determining means to control the blowing wind direction, and the compressor is operated for heating. A drying operation determining means for determining the content of the drying operation to perform the drying, those having a.

A control device for an air conditioner according to a second aspect of the present invention includes a draining operation time measuring means for measuring a draining operation time, and detecting that the measured value of the draining operation time reaches a predetermined value. And a draining operation end detecting means A for terminating the draining operation.

According to a third aspect of the present invention, there is provided an air conditioner control device for detecting an internal temperature of the air conditioner, wherein the detected value of the internal temperature of the air conditioner reaches a predetermined value or more. This is provided with a draining operation end detecting means B for detecting that the draining operation has been completed and ending the draining operation.

According to a fourth aspect of the present invention, there is provided a control device for an air conditioner, wherein the humidity detector inside the air conditioner detects the humidity inside the air conditioner, and the detected value of the humidity inside the air conditioner reaches a predetermined value or less. This is provided with a draining operation end detecting means C for detecting that the draining operation has been completed and ending the draining operation.

A control device for an air conditioner according to a fifth aspect of the present invention includes a cooling operation time measuring means for measuring a cooling operation time or a dehumidifying operation time, and a cooling operation time for storing the measured cooling operation time. A storage means and a draining operation time calculating means A for calculating a draining operation time based on a stored value of the stored cooling operation time are provided.

A control device for an air conditioner according to a sixth aspect of the present invention comprises: a cooling operation frequency storing means for storing an operating frequency of the compressor during a cooling operation or a dehumidifying operation; Is provided with a draining operation time calculating means B for calculating the draining operation time based on the stored value of.

The air conditioner control device according to claim 7 of the present invention is provided with standby operation means for stopping the compressor and the indoor blower and setting the wind direction control plate at a predetermined position during draining operation. It is.

In the air conditioner control device according to the eighth aspect of the present invention, the compressor is stopped during the draining operation, and the blower air flow rate determining means and the blower air flow direction determining means determine the air flow at a predetermined blow air flow rate and a predetermined blow air flow direction. A blowing operation means for blowing out the air to perform a blowing operation is provided.

According to a ninth aspect of the present invention, in the air conditioner control device according to the ninth aspect of the present invention, at the time of the draining operation, the air is blown out at a predetermined air volume and a predetermined air direction by the air volume determining means and the air direction determining means, and the compressor is operated. An intermittent heating operation means for performing an intermittent heating operation at a predetermined operation frequency is provided.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. Hereinafter, the present invention will be described based on the illustrated embodiments. 1 to 5 show an air conditioner control device according to claims 1, 2 and 7 of the present invention.
1 is a system configuration diagram, FIG. 2 is a refrigerant circuit diagram of the refrigeration cycle, FIG. 3 is an electric circuit diagram, FIG. 4 is a flowchart for explaining the operation, and FIG. 5 is a characteristic diagram.

In FIG. 1 to FIG. 3, reference numeral 1A denotes a draining operation determining means for determining the contents of the draining operation for removing moisture adhering to the indoor heat exchanger 14 after the cooling operation or the dehumidifying operation of the air conditioner body 6, 5 is a drying operation determining means for determining the content of a drying operation for drying the indoor heat exchanger 14 after the draining operation, and 6 is an air conditioner body having a refrigeration cycle shown in FIG. Air blower 10 having an air blower 9, an outdoor blower 10, an indoor blower 11, and a wind direction control plate 12, and determining the number of revolutions of the indoor blower 11 to control the air blown by the air conditioner;
And a blowout wind direction determining means 8 for determining the blowout wind direction.

The draining operation determining means 1A includes a draining operation time measuring means 2 for measuring the draining operation time, a standby operation means 3 for controlling the air conditioner main body 6 during the draining operation, and a measured value of the draining operation time measuring means 2. Draining operation end detecting means A (hereinafter referred to as first draining operation end detecting means) 4 for terminating the draining operation when the measured value reaches the set time as compared with the set value (set time). I have.

The stand-by operation means 3 stops the compressor 9 and the outdoor blower 10 of the air conditioner main body 6, and instructs the blow-out air amount determining means 7 to stop the indoor blower 11 during the draining operation. It instructs the wind direction determining means 8 to set the wind direction control plate 12 at a predetermined position.

After the draining operation, the drying operation determining means 5
It instructs the blow-out air amount determining means 7 to control the indoor blower 11 to a predetermined blow-out air amount, and instructs the blow-out air direction determining means 8 to set the wind direction control plate 12 to a predetermined position. A driving command is given to the outdoor blower 10 to perform a heating operation, and the indoor heat exchanger 14 is dried.

As shown in FIG. 2, the refrigeration cycle provided in the air conditioner body 6 includes a compressor 9, an outdoor blower 10, an indoor blower 11, an indoor heat exchanger 14, a four-way valve 13, an outdoor heat exchanger. 15, having an expansion valve 16, during the cooling operation or the dehumidifying operation, the refrigerant flows as indicated by a solid line arrow in the figure,
During the heating operation, the four-way valve 13 is switched so that the refrigerant flow path is formed as indicated by a broken line, so that the refrigerant flows as indicated by the arrow indicated by the broken line in the figure.

As shown in FIG. 3, the electric circuit comprises a power switch 17 and a control device 18 comprising a microcomputer for controlling the air conditioner main body 6.
The memory 19 includes a CPU 20 including a calculation unit and a control unit, and an output circuit 21. The memory 19 stores a draining operation determination program and a drying operation determination program.
In U20, arithmetic processing and control value determination processing are performed, and output from the output circuit 21 to the air conditioner main body 6.

Next, the operation of the apparatus of this embodiment will be described with reference to FIG.
This will be described with reference to the flowchart of FIG. First, when the cooling operation or the dehumidifying operation is stopped (step 101), initial settings for the draining operation, that is, confirmation of stoppage of the compressor 9 and the indoor blower 11, setting of the wind direction control plate 12 to a predetermined position, draining operation time (Step 102), and start the draining operation (Step 10).
3).

When the draining operation is started, the draining operation time is measured by the draining operation time measuring means 2 (step 104), and the draining operation measuring time t _m measured by the first draining operation end detecting means 4 is measured. Is compared with a preset time t _s (step 105).
If draining operation measurement time t _m has not reached the set time t _s returns to step 104 to repeat the processes of steps 104 and step 105 until t _m ≧ t _s. If draining operation measurement time t _m is reached in the time setting t _s, and ends the draining operation (step 106). Set time t _s at this time is a predetermined value, the air conditioner inside the water including the indoor heat exchanger 14 can be effectively removed, and the air conditioner body no condensation during the drying operation performed after draining operation As described above, the air-conditioner body is set to an optimum value that can be raised to about room temperature before the drying operation. As a result, a large amount of water attached to the indoor heat exchanger 14 is discharged to the outside of the air conditioner body, and almost no water remains inside the air conditioner.

When the draining operation is completed, initial settings for the drying operation, that is, initial settings such as the amount of blown air and the direction of the blown air are performed (step 107), and the drying operation is started (step 108). At this time, the set values of the amount of blown air and the direction of the blown air are set to values that can avoid the influence on the indoor living area and the user and can perform the drying operation more efficiently. Warm air outflow can be suppressed.

As described above, in the control device for the air conditioner according to the present embodiment, the draining operation is performed before the drying operation, and the inside of the air conditioner is almost completely removed by the draining operation. The air conditioner body is raised to around room temperature before the drying operation to prevent dew condensation on the air conditioner body, so the subsequent drying operation can be performed very efficiently, and the air conditioner can be operated in a short time. Various components inside and inside the main body can be dried, and the growth of mold and other bacteria on the inside and inside components of the air conditioner can be prevented. Further, since the heating operation (drying operation) is performed after almost all the water inside the air conditioner body is removed, the odor generated when the water evaporates is drastically reduced, and the influence on the living room and the user can be suppressed.

Next, the characteristics of the device of this embodiment are shown in FIG.
The horizontal axis indicates time, the vertical axis indicates relative humidity inside the air conditioner, temperature inside the air conditioner, drain water discharge per unit time (moisture amount inside the air conditioner), operating condition of the air conditioner,
Respectively. At time A, the air conditioner is performing a cooling operation or a dehumidifying operation. At this time, the inside of the air conditioner is cooled by the heat exchanged air, and the relative humidity inside the air conditioner is about 90% RH or higher. The drain water discharge per unit time is
The amount corresponding to the air-conditioning load condition at that time and the output capacity of the air conditioner is discharged with some variation.

At time B, the cooling operation or the dehumidifying operation is stopped, and the draining operation is started. This control routine is as described above from step 101 to step 103 in FIG. Immediately after stopping the cooling operation or the dehumidifying operation, the relative humidity inside the air conditioner becomes almost 100% RH without limit,
If the air conditioner is stopped, this state is almost maintained for a long time. Such a very humid environment is very suitable for bacteria such as mold to grow,
If this situation continues, these breeding will be greatly promoted.

After time B, the temperature inside the cooled air conditioner starts to rise. The amount of the rise is determined by the draining operation determining means 1A so that the wind direction control plate 12 is positioned at an optimum position, for example, the opening area of the air outlet is increased.
At a position parallel to the air path, it is usually larger than when the operation is simply stopped (usually, when the operation is stopped, the air outlet is closed by the wind direction control plate). Also, the amount of drain water discharged per unit time starts to decrease rapidly. Time C
This state continues while measuring the time of the draining operation until (set time t _s ). This control routine corresponds to step 10 in FIG.
4 to step 105, and step 105
Is a control flow in which it is determined that the draining operation measurement time has not reached the set time t _s .

At time C, the draining operation time reaches the set time t _s , the draining operation ends, and the drying operation starts. This control routine is performed from step 106 to step 1 in FIG.
08. At time C, the temperature inside the air conditioner has risen to approximately the room temperature. In addition, drain water discharge per unit time has almost disappeared,
Most of the water inside the air conditioner has been removed. From this state, since the drying operation using the heating operation is performed at a predetermined blowing air volume (for example, set to a weak air volume) and a predetermined blowing air direction (for example, setting to be higher than horizontal), the inside of the air conditioner body including the indoor heat exchanger 14 is performed. Can be effectively dried in a very short time, and the odor generated when the water evaporates is almost eliminated, and the slightly generated odor does not flow into the indoor living area. Further, since the temperature inside the air conditioner has also risen to about room temperature, dew condensation on the air conditioner main body when the drying operation is started can be reduced.

If the heating operation is performed immediately after the cooling operation or the dehumidifying operation is completed in the time B as in the conventional example, a large amount of moisture remains in the air conditioner, so that the inside of the air conditioner is completely dried. It takes a lot of time to complete the process, and in some cases, the inside of the air conditioner cannot be completely dried, and instead the inside of the air conditioner may be in a humid environment, which may promote the growth of mold and bacteria. Further, when a large amount of water evaporates, a large amount of odor is generated, which gives the user discomfort.

After the start of the drying operation, the heat energy obtained by the heating operation until time D is used for latent heat exchange of the moisture slightly remaining inside the air conditioner including the indoor heat exchanger 14. Therefore, the rise in the temperature inside the air conditioner temporarily stops.
At time D, moisture remaining inside the air conditioner starts to evaporate, and at this stage, the inside of the air conditioner is in a high-temperature and high-humidity state.

After time D, the temperature inside the air conditioner starts to increase again, and the humidity inside the air conditioner starts to decrease rapidly. Then, at time E, a very low-humidity state in which bacteria such as mold cannot grow inside the air conditioner is formed, and the inside of the air conditioner can be kept clean.

Embodiment 2 FIG. FIG. 6 shows claim 1 of the present invention.
System configuration diagram showing the control device of the air conditioner according to 3, 8,
FIG. 7 is an electric circuit diagram, in which the same parts as those of the first embodiment are denoted by the same reference numerals. In the description, a refrigerant circuit diagram (FIG. 2) of the refrigeration cycle used in the first embodiment will be referred to.

The control device for the air conditioner of the second embodiment
After the cooling operation or the dehumidifying operation of the air conditioner main body 6, the draining operation determining means 1B for determining the content of the draining operation for removing moisture adhering to the indoor heat exchanger 14 detects the temperature inside the air conditioner. The internal temperature detecting means 22 and the compressor 9 are stopped during the draining operation, and the blower air flow rate determining means 7 is instructed to control the indoor blower 11 to a predetermined blow air flow rate (for example, a weak air flow rate). A blow operation means 23 for instructing the means 8 to set the wind direction control plate 12 at a predetermined position (for example, a position parallel to the air path), blowing the air at a predetermined blow air volume and a predetermined blow air direction, and performing a blow operation; Then, the detection value of the air conditioner internal temperature detection means 22 is compared with a set value (set temperature). The second of the draining operation end detecting means) that is composed of 24. is different from that of FIG. 1 of the first embodiment described above.

In the electric circuit, as shown in FIG. 7, the internal temperature 25 of the air conditioner is inputted to the control device 18 via the input circuit 26 as shown in FIG. Is different from The other configuration is the same as that of the first embodiment.

In the air conditioner control device according to the second embodiment, the temperature inside the air conditioner is detected during the draining operation, and the draining operation ends when the detected temperature reaches or exceeds the set temperature. Therefore, if the set temperature is set to about room temperature, the internal temperature of the air conditioner can be raised to about the indoor temperature, as in the first embodiment, and the moisture inside the air conditioner is reduced during that time. Almost can be removed, and the condensation on the air conditioner main body at the start of the subsequent drying operation can be reduced.

Also, during the draining operation, only the compressor 9 is stopped and the air blowing operation is performed at a predetermined blowing air volume and a predetermined blowing air direction so that the indoor air circulates inside the air conditioner. Thus, the temperature inside the air conditioner can be raised to about room temperature. For this reason, the moisture adhering to the indoor heat exchanger 14 can be forcibly and efficiently removed. The operation of the drying operation started after the draining operation is the same as that of the first embodiment described above, and thus the description thereof is omitted.

As described above, in the second embodiment, the temperature inside the air conditioner is detected during the draining operation, and when the detected temperature reaches the set temperature or higher, the draining operation is terminated. I ’m going to drive,
The inside of the air conditioner body including the indoor heat exchanger 14 can be effectively dried in a very short time.

Embodiment 3 FIG. FIG. 8 shows claim 1 of the present invention.
A system configuration diagram showing an air conditioner control device according to 4, 8;
FIG. 9 is an electric circuit diagram. In each figure, the same parts as those of the above-described second embodiment are denoted by the same reference numerals. Note that the description here also refers to the refrigerant circuit diagram (FIG. 2) of the refrigeration cycle used in the above-described first embodiment.

The control device of the air conditioner according to the third embodiment
After the cooling operation or the dehumidifying operation of the air conditioner main body 6, the draining operation determining means 1C for determining the content of the draining operation for removing moisture adhering to the indoor heat exchanger 14 detects the humidity inside the air conditioner. The internal humidity detecting means 27 and the compressor 9 are stopped during the draining operation, and the blower air amount determining means 7 is further instructed to control the indoor blower 11 to a predetermined blowout air amount (for example, a weak airflow amount). A blow operation means 23 for instructing the means 8 to set the wind direction control plate 12 at a predetermined position (for example, a position parallel to the air path), blowing the air at a predetermined blow air volume and a predetermined blow air direction, and performing a blow operation; The detected value of the air conditioner internal humidity detecting means 27 is compared with a set value (set humidity), and when the detected value becomes equal to or less than the set humidity, the draining operation end detecting means C (hereinafter, referred to as “water draining operation end”). That it is configured to record a third of draining operation end detecting means) 28. is different from that in FIG. 6 of the second embodiment described above.

In the electric circuit, as shown in FIG. 9, the controller 18 receives an air conditioner internal humidity 29 via an input circuit 26 as shown in FIG. Is different from Other configurations are the same as those of the above-described second embodiment.

The controller of the air conditioner of the third embodiment detects the humidity inside the air conditioner during the draining operation, and terminates the draining operation when the detected humidity falls below the set humidity. Therefore, if the set humidity is set to the value at the time when the moisture inside the air conditioner is almost completely removed, the moisture inside the air conditioner can be almost removed, and the air conditioner main body at the start of the subsequent drying operation can be removed. Dew condensation can be reduced.

Also, in the third embodiment, similarly to the above-described second embodiment, only the compressor 9 is stopped during the draining operation by the air blowing operation means 23, and the air blowing operation is performed with the predetermined blowing air volume and the predetermined blowing air direction. Thus, room air is circulated inside the air conditioner. Therefore, the temperature inside the air conditioner rises to about room temperature in a short time, and the water adhering to the indoor heat exchanger 14 is forcibly and efficiently removed. The humidity inside the machine also decreases. For this reason, the moisture adhering to the indoor heat exchanger 14 can be forcibly and efficiently removed. In addition, regarding the operation of the drying operation started after the end of the draining operation, the first operation described above is performed.
The description is omitted because it is the same as that of the embodiment.

As described above, in the apparatus according to the third embodiment, the humidity inside the air conditioner is detected during the draining operation, and when the detected humidity becomes equal to or lower than the set humidity, the draining operation is terminated. I ’m going to drive,
The inside of the air conditioner body including the indoor heat exchanger 14 can be effectively dried in a very short time.

Embodiment 4 FIG. FIG. 10 shows claim 1 of the present invention.
A system configuration diagram showing an air conditioner control device according to 5, 9;
FIG. 11 is an explanatory diagram showing the relationship between the cooling operation time and the subsequent draining operation time, and FIG. 12 is an explanatory diagram showing an example of a heating operation pattern during the draining operation time.
In FIG. 0, the same portions as those of the first embodiment are denoted by the same reference numerals. Note that the description here also refers to the refrigerant circuit diagram (FIG. 2) of the refrigeration cycle used in the above-described first embodiment.

The control device of the air conditioner of the fourth embodiment is as follows.
After the cooling operation or the dehumidifying operation of the air conditioner main body 6, the draining operation determining means 1D for determining the content of the draining operation for removing the moisture adhering to the indoor heat exchanger 14 determines the time of the preceding cooling operation or dehumidifying operation. The cooling operation time measuring means 31 for measuring, the cooling operation time storing means 32 for storing the measured cooling operation time, and the indoor blower 11 for the blow-off air amount determining means 7 at the time of the draining operation by the predetermined blowing air amount (for example, Command to set the wind direction control plate 12 to a predetermined position (for example, upward from horizontal) to the blowout wind direction determining means 8 and to intermittently operate the compressor 9 at a predetermined operation frequency. Intermittent heating operation means 33 for performing a constant heating operation, and draining operation time calculation means A (hereinafter, referred to as a draining operation time calculating means A for calculating the draining operation time based on the stored value of the stored cooling operation time. A point and a first of draining operation time calculating means) 34. is different from that of FIG. 1 of the first embodiment described above. The electric circuit has the same configuration as that of FIG. The other configuration is the same as that of the first embodiment.

In the control device for an air conditioner according to the fourth embodiment, first, when the air conditioner performs a cooling operation or a dehumidifying operation,
The cooling operation time measurement means 31 measures this, and stores the measured value in the cooling operation time storage means 32. When the cooling operation or the dehumidifying operation is stopped, the draining operation is started. The time for performing the draining operation is calculated as shown in FIG. 11 by the first draining operation time calculating means 34 based on the value stored in the cooling operation time storing means 30. That is, if the time of the cooling operation or the dehumidifying operation is long, the amount of water accumulated inside the air conditioner including the indoor heat exchanger 14 is also large. Therefore, the draining operation time is set to the longest time so that this water can be reliably removed. Do. Conversely, if the time of the cooling operation or the dehumidifying operation is short, the amount of water retained inside the air conditioner is small, and thus the draining operation may be performed only for the shortest time. By determining the draining operation time in this way, it is possible to prevent the draining operation from being performed unnecessarily for a long time and to waste energy. In addition, it is possible to prevent the water draining operation time from being too short, leaving a large amount of water inside the air conditioner, causing a large amount of dew condensation on the air conditioner body during the drying operation after the water draining operation, and preventing the efficiency of the drying operation from becoming extremely poor. it can.

In the fourth embodiment, the heating operation is performed intermittently by the intermittent heating operation means 33 during the draining operation as shown in FIG. For this reason, the temperature inside the air conditioner can be raised to room temperature or higher in a short time as compared with the above-described first to third embodiments, and the air conditioner main body is reliably prevented from dew condensation during the subsequent drying operation. The drying operation after the draining operation can be performed very efficiently. However, in the intermittent heating operation, it is necessary to operate the compressor 9 at a predetermined operation frequency so that the moisture remaining in the air conditioner does not evaporate and the humidity inside the air conditioner does not increase. By controlling the draining operation in this way,
An optimal draining operation without excess and deficiency can be performed, and the drying operation can be performed much more efficiently than the above-described first to third embodiments without dew condensation on the air conditioner body during the subsequent drying operation.

Embodiment 5 FIG. FIG. 13 shows claim 1 of the present invention.
System configuration diagram showing the control device of the air conditioner according to 6, 9,
FIG. 14 is an explanatory diagram showing the relationship between the operating frequency of the compressor during the cooling operation and the subsequent drainage operation time.
The same parts as those in the fourth embodiment are denoted by the same reference numerals. Note that the description here also refers to the refrigerant circuit diagram (FIG. 2) of the refrigeration cycle used in the above-described first embodiment.

The control device of the air conditioner according to the fifth embodiment
After the cooling operation or the dehumidifying operation of the air conditioner main body 6, the draining operation determining means 1E for determining the content of the draining operation for removing the moisture adhering to the indoor heat exchanger 14 is provided during the cooling operation or the dehumidifying operation at the preceding stage. A cooling operation frequency storage means 35 for storing an operation frequency of the compressor 9 and a command for controlling the indoor blower 11 to a predetermined blow-off air flow rate (for example, a weak air flow rate) to the blow-off air flow rate determination means 7 during the draining operation,
The intermittent heating operation means 33 instructs the blowout wind direction determination means 8 to set the wind direction control plate 12 at a predetermined position (for example, upward from horizontal) and heats the compressor 9 intermittently at a predetermined operation frequency. And a draining operation time calculating means B (hereinafter referred to as a second draining operation time calculating means) 36 for calculating a draining operation time based on the stored value of the operating frequency of the compressor 9 during the cooling operation. The configuration is different from that of FIG. 10 of the fourth embodiment. The electric circuit has the same configuration as that of FIG. Other configurations are the same as those of the above-described fourth embodiment.

In the control device for an air conditioner of the fifth embodiment, first, when the air conditioner performs a cooling operation or a dehumidifying operation,
The operating frequency of the compressor 9 at this time is stored in the cooling operation frequency storage means 35. When the cooling operation or the dehumidifying operation is stopped, the draining operation is started. The time for performing the draining operation is calculated as shown in FIG. 14 by the second draining operation time calculating means 36 based on the value stored in the cooling operation frequency storing means 35. That is, if the compressor operating frequency during the cooling operation or the dehumidifying operation is large, the amount of water accumulated inside the air conditioner including the indoor heat exchanger 14 is also large,
The draining operation time is performed for the longest time so that this water can be reliably removed. Conversely, if the compressor operating frequency during the cooling operation or the dehumidifying operation is low, the amount of water retained inside the air conditioner is small, so that the draining operation may be performed only for the shortest time. By determining the draining operation time in this manner, it is possible to prevent wasteful operation of the draining operation, as in the fourth embodiment, and prevent waste of energy. In addition, it is possible to prevent the water draining operation time from being too short, leaving a large amount of water inside the air conditioner, causing a large amount of dew condensation on the air conditioner body during the drying operation after the water draining operation, and preventing the efficiency of the drying operation from becoming extremely poor. it can.

Also, in the fifth embodiment, the heating operation is performed intermittently by the intermittent heating operation means 33 as in the fourth embodiment. The contents of this intermittent heating operation are the same as in the fourth embodiment. By controlling the draining operation in this manner, an optimal draining operation can be performed without excess or deficiency as in the fourth embodiment. The drying operation can be performed much more efficiently than in the third embodiment.

[0064]

As described above, according to the first aspect of the present invention, the draining operation is performed after the cooling operation or the dehumidifying operation.
Since the drying operation is performed after almost all the water inside the air conditioner is removed by this draining operation, the drying operation can be performed very efficiently, and the moisture inside the air conditioner where the odor components in the room are condensed The odor when evaporating is also drastically reduced, and the influence on the air-conditioned room and the user can be suppressed.

According to the second aspect of the present invention, when the measured value of the draining operation time measuring means for measuring the draining operation time reaches a predetermined value, the draining operation end detecting means A terminates the draining operation. Therefore, by setting the draining operation time to a time in which most of the moisture inside the air conditioner can be removed in advance, the moisture adhering to the indoor heat exchanger can be efficiently removed, and the air conditioner body can be removed during the drying operation performed after the draining operation. The temperature can be raised to around room temperature without dew condensation, and the inside of the air conditioner can be efficiently dried in a short time.

According to the third aspect of the present invention, when the detection value of the air conditioner internal temperature detecting means for detecting the temperature inside the air conditioner reaches a predetermined value or more, the draining operation end detecting means B performs the draining operation. By setting the temperature inside the air conditioner to a temperature at which most of the moisture inside the air conditioner can be removed in advance, it is possible to prevent condensation on the air conditioner body during the drying operation performed after the draining operation. Therefore, the inside of the air conditioner can be efficiently dried in a short time.

According to the fourth aspect of the present invention, when the detection value of the humidity detector inside the air conditioner for detecting the humidity inside the air conditioner has reached a predetermined value or less, the draining operation completion detecting means C performs the draining operation. By setting the humidity inside the air conditioner to a value that can remove most of the moisture inside the air conditioner in advance, it is possible to prevent dew condensation on the air conditioner body during the drying operation performed after the draining operation. Therefore, the inside of the air conditioner can be efficiently dried in a short time.

According to the invention of claim 5, the measured value of the cooling operation time or the dehumidification operation time measured by the cooling operation time measurement means is stored in the cooling operation time storage means.
Since the draining operation time calculating means A calculates the draining operation time based on the stored value, the water adhering to the indoor heat exchange is efficiently removed according to the length of the cooling operation time or the dehumidifying operation time. The optimum draining operation time can be determined.

According to the sixth aspect of the present invention, the draining operation time calculating means B determines the draining operation time based on the operating frequency of the compressor during the cooling operation or the dehumidifying operation stored in the cooling operation frequency storage means. Is calculated.
According to the load condition during cooling operation or dehumidifying operation,
An optimal draining operation time for efficiently removing moisture adhering to indoor heat exchange can be determined.

According to the seventh aspect of the present invention, during the draining operation, the standby operation means stops the compressor and the indoor blower, and sets the wind direction control plate to a predetermined position to remove the cool air remaining inside the air conditioner. Since the water adhering to the indoor heat exchanger is allowed to drop naturally while discharging the air, the air conditioner main body can be raised to a room temperature at which the dew condensation does not occur on the air conditioner main body while suppressing energy consumption.

According to the eighth aspect of the present invention, the blower operating means stops the compressor during the draining operation,
The blow-out air amount is determined by the blow-out air amount determining means and the blow-out air direction determining means, and the air is blown out at a predetermined blow-out air direction, so that the air-blowing operation is performed, so that the moisture attached to the indoor heat exchanger can be forcibly removed, It is possible to shorten the time required to raise the temperature of the air conditioner body to a room temperature at which no dew condensation occurs.

According to the ninth aspect of the present invention, during the draining operation, the intermittent heating operation means blows out the air at a predetermined blowing air amount and a predetermined blowing air direction by the blowing air flow rate determining means and the blowing air flow direction determining means, and also causes the compressor to operate at a predetermined rate. Since the heating operation is performed intermittently at the operation frequency, it is possible to further reduce the time required for removing the moisture adhering to the indoor heat exchanger and bringing the air conditioner main body into a state where no dew condensation occurs.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of an air conditioner control device according to a first embodiment of the present invention.

FIG. 2 is a refrigerant circuit diagram of a refrigeration cycle of the control device for the air conditioner according to the first embodiment.

FIG. 3 is an electric circuit diagram of the control device for the air conditioner according to the first embodiment.

FIG. 4 is a flowchart illustrating an operation of the control device for the air conditioner according to the first embodiment.

FIG. 5 is a characteristic diagram of the control device for the air conditioner according to the first embodiment.

FIG. 6 is a system configuration diagram of an air conditioner control device according to a second embodiment of the present invention.

FIG. 7 is an electric circuit diagram of an air conditioner control device according to a second embodiment.

FIG. 8 is a system configuration diagram of an air conditioner control device according to a third embodiment of the present invention.

FIG. 9 is an electric circuit diagram of an air conditioner control device according to a third embodiment.

FIG. 10 is a system configuration diagram of an air conditioner control device according to a fourth embodiment of the present invention.

FIG. 11 is an explanatory diagram illustrating a relationship between a cooling operation time and a subsequent drainage operation time of a control device of an air conditioner according to a fourth embodiment.

FIG. 12 is an explanatory diagram showing an example of a pattern of a heating operation in a draining operation time of a control device for an air conditioner according to a fourth embodiment.

FIG. 13 is a system configuration diagram of an air conditioner control device according to a fifth embodiment of the present invention.

FIG. 14 is an explanatory diagram showing a relationship between an operating frequency of a compressor during a cooling operation of a control device for an air conditioner according to a fifth embodiment and a subsequent drainage operation time.

FIG. 15 is a system configuration diagram of an air conditioner of the first conventional example.

FIG. 16 is a schematic configuration diagram of an air conditioner of a second conventional example.

FIG. 17 is a system configuration diagram of an air conditioner of a third conventional example.

[Explanation of symbols]

1A, 1B, 1C, 1D, 1E draining operation determining means,
2 Draining operation time measurement means, 3 Standby operation means, 4
Draining operation end detecting means A, 5 Drying operation determining means, 6
Air conditioner body, 7 outlet air volume determining means, 8 outlet air direction determining means, 9 compressor, 10 outdoor fan, 11 indoor fan, 12 air direction control plate, 14 indoor heat exchanger, 15
Outdoor heat exchanger, 22 air conditioner internal temperature detecting means, 23
Blowing operation means, 24 Draining operation end detection means B, 27
Air conditioner internal humidity detector, 28 drainage operation end detection means C, 31 cooling operation time measurement means, 32 cooling operation time storage means, 33 intermittent heating operation means, 34 drainage operation time calculation means A, 35 cooling operation frequency storage means, 36
Draining operation time calculation means B.

Claims (9)

[Claims] 1. A compressor, an indoor heat exchanger, an outdoor heat exchanger,
An air conditioner including a refrigeration cycle including an indoor blower and an outdoor blower, and a wind direction control plate for changing a direction of wind blown from the air conditioner main body by the indoor blower. Blowout air amount determining means for controlling the airflow direction control means for controlling the airflow direction control plate to determine the blowout airflow direction; and contents of the draining operation for draining the moisture attached to the indoor heat exchanger after the cooling operation or the dehumidifying operation. Water draining operation determining means for determining, and after the water draining operation, the indoor blower is controlled to a predetermined blowing air volume by the blowing air volume determining means, and the wind direction control plate controls the blowing wind direction by the blowing wind direction determining means, and the compression Drying operation determining means for determining the content of the drying operation for performing the heating operation by the machine and drying the indoor heat exchanger. A control device for an air conditioner, characterized in that: 2. A draining operation time measuring means for measuring a draining operation time, and a draining operation end detecting means A for detecting that the measured value of the draining operation time reaches a predetermined value and terminating the draining operation. The control device for an air conditioner according to claim 1, wherein: 3. An air conditioner internal temperature detecting means for detecting the temperature inside the air conditioner, and a draining operation end detection for detecting that the detected value of the air conditioner internal temperature has reached a predetermined value or more and terminating the draining operation. The control device for an air conditioner according to claim 1, further comprising means B. 4. An air conditioner internal humidity detector for detecting the humidity inside the air conditioner, and a draining operation end detection for detecting that the detected value of the air conditioner internal humidity has reached a predetermined value or less and terminating the water draining operation. The control device for an air conditioner according to claim 1, further comprising means C. 5. A cooling operation time measuring means for measuring a cooling operation time or a dehumidifying operation time, a cooling operation time storing means for storing the measured cooling operation time, and a storage value of the stored cooling operation time. The control device for an air conditioner according to claim 1 or 2, further comprising a draining operation time calculating means A for calculating a draining operation time based on the draining operation time. 6. A cooling operation frequency storing means for storing an operating frequency of a compressor during a cooling operation or a dehumidifying operation, and a draining operation time for calculating a draining operation time based on the stored value of the stored cooling operation frequency. The control device for an air conditioner according to claim 1 or 2, further comprising a calculating means (B). 7. A stand-by operation means for stopping a compressor and an indoor blower and setting a wind direction control plate to a predetermined position during a draining operation. The control device of the air conditioner according to the above. 8. A blow-off operation means for stopping the compressor at the time of the draining operation and blowing the air at a predetermined blow-off air amount and a predetermined blow-off air direction by a blow-off air amount determining means and a blow-off air direction determining means to perform a blowing operation. Claim 1.
The control device for an air conditioner according to claim 6. 9. An intermittent heating operation means for causing the air to be blown out at a predetermined air flow rate and a predetermined air flow direction by a blow air volume determining means and a blow air direction determining means during a draining operation, and for intermittently heating the compressor at a predetermined operating frequency. The control device for an air conditioner according to any one of claims 1 to 6, further comprising: