JP2013217532A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically start forced operation of lowering at least one of an indoor temperature or indoor humidity in operation stop when the indoor temperature or the indoor humidity is in a high state.SOLUTION: An indoor temperature sensor and an indoor humidity sensor are attached to an indoor unit of the air conditioner. During operation stop, in a forced operation mode, if an indoor temperature detected by the indoor temperature sensor and indoor humidity detected by the indoor humidity sensor are in a high temperature zone, cooling operation is automatically started.

Description

  The present invention relates to an air conditioner that performs a cooling operation or the like.

  The air conditioner generally performs cooling operation, heating operation, etc., and when the user selects the cooling operation etc. for the controller and starts the operation, the operation such as the cooling operation starts. Is done.

JP 2009-168372 A

  Therefore, even when the room temperature and the room humidity are high, the operation of the air conditioner is not started when the user does not perform the operation start operation on the controller. Therefore, a user may become heat stroke etc.

  Then, an object of this invention is to provide the air conditioner which can start the forced operation which reduces at least one of indoor temperature and indoor humidity automatically at the time of an operation stop.

  An air conditioner according to a first aspect of the present invention includes a temperature detection unit that detects a room temperature and a humidity detection unit that detects a room humidity. The room temperature detected by the temperature detection unit when the operation is stopped. And / or a forced operation mode in which a forced operation for reducing at least one of the indoor temperature and the indoor humidity is automatically started based on the indoor humidity detected by the humidity detecting means.

  In this air conditioner, when the room is in a state where the room temperature and / or the room humidity needs to be lowered, forced operation for reducing at least one of the room temperature and the room humidity is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and / or indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  Here, in the present invention, when the forced operation is started based on the indoor temperature and the indoor humidity, when the forced operation is started based on the indoor temperature, and the forced operation is started based on the indoor humidity. Including cases. Further, the forced operation of the present invention includes an operation for reducing the room temperature and the room humidity, an operation for reducing the room humidity, and an operation for reducing the room temperature.

  An air conditioner according to a second aspect of the present invention further includes an indoor fan disposed in the interior of the indoor unit according to the first aspect, wherein the indoor temperature and / or indoor humidity is in a state where the indoor fan is driven. Temperature and / or humidity.

  In this air conditioner, it is determined whether to start the forced operation based on the room temperature and / or the room humidity when the indoor fan is driven and air flows inside the indoor unit. Even when the indoor humidity detection means is inside the indoor unit and heat is trapped inside the indoor unit when the operation is stopped, the indoor temperature and / or indoor humidity can be detected appropriately.

  In the air conditioner according to a third aspect of the present invention, in the second aspect, the indoor fan is driven when the indoor temperature and / or the indoor humidity are within a predetermined first range.

  In this air conditioner, by setting the predetermined first range close to the range where the forced operation is started, when the room temperature and / or the indoor humidity approaches the range where the forced operation is started, The fan can be driven. Therefore, it is possible to determine whether to start the forced operation by properly detecting the room temperature and / or room humidity.

  An air conditioner according to a fourth aspect of the present invention is the air conditioner according to the third aspect, wherein the indoor fan is continuously driven when the indoor temperature and / or the indoor humidity are in the first range after the indoor fan is driven. Is done.

  In this air conditioner, when the room temperature and / or room humidity is near the range where the forced operation is started, the indoor fan can be continuously driven. Therefore, it is possible to determine whether to start the forced operation by properly detecting the room temperature and / or room humidity.

  In the air conditioner according to a fifth aspect based on the second aspect, in the forced operation mode, the indoor fan is periodically driven for a predetermined air blowing time.

  In this air conditioner, since the indoor fan is periodically driven in the forced operation mode, it is possible to determine whether to start the forced operation by properly detecting the indoor temperature and / or indoor humidity.

  An air conditioner according to a sixth invention is the air conditioner according to any one of the second to fifth inventions, wherein the indoor temperature and / or indoor humidity is in the first range after the indoor fan is driven. When the time continues, forced operation starts automatically.

  In this air conditioner, forced operation is started when the room temperature and / or room humidity is within a predetermined time near the range where forced operation is started. Therefore, the forced operation can be started before the forced operation is required, and the indoor temperature and / or the indoor humidity can be lowered.

  The air conditioner according to a seventh aspect of the present invention is the air conditioner according to any one of the first to third and fifth aspects, wherein at least one of the indoor temperature and the indoor humidity after the indoor fan is driven tends to increase. The forced operation is automatically started.

  In this air conditioner, forced operation is started when at least one of the indoor temperature and the indoor humidity after the indoor fan is driven tends to increase. Therefore, the forced operation can be started before the forced operation is required, and the indoor temperature and / or the indoor humidity can be lowered.

  In the air conditioner pertaining to the eighth invention, in any one of the third to sixth inventions, forced operation is automatically started when the room temperature and / or room humidity is within the predetermined second range. .

  In this air conditioner, forcible operation can be started when the room temperature and / or room humidity is high by setting the predetermined second range to a range in which the room temperature and / or room humidity needs to be reduced.

  In the air conditioner according to a ninth aspect of the present invention, in the second to eighth aspects of the invention, when the indoor fan is driven, the indoor fan is driven at a low speed.

  In this air conditioner, the burden on the user can be reduced by making the air volume when the indoor fan is driven smaller than that during the cooling operation.

  An air conditioner according to a tenth aspect of the present invention is the air conditioner according to any one of the second to ninth aspects, further comprising an upper and lower flap that changes a blowing direction in a vertical direction at an outlet of the indoor unit, and the indoor fan is driven. In this case, the blowing direction is changed to the upward direction.

  In this air conditioner, by changing the blowing direction when the indoor fan is driven upward, the wind from the indoor unit is not blown directly to the user, so the burden on the user can be reduced.

  In any one of the first to tenth inventions, the air conditioner pertaining to the eleventh invention is notified that the forced operation is started before the forced operation is automatically started in the forced operation mode. The

  In this air conditioner, the user can be notified before the forced operation is started.

  An air conditioner according to a twelfth aspect of the present invention is the air conditioner according to any one of the first to eleventh aspects, further comprising an outside air temperature detecting means for detecting an outside air temperature, wherein the outside air temperature detected by the outside air temperature detecting means is predetermined. When the temperature is below the outside air temperature, forced operation is not started.

  In this air conditioner, when the outside air temperature is low and the cooling operation is unnecessary, the cooling operation can be prevented from being started.

  An air conditioner according to a thirteenth aspect of the present invention is the air conditioner according to any one of the first to twelfth aspects of the present invention, further comprising a controller that selects a cooling operation, a heating operation, or an automatic operation to perform an operation start operation. The controller cannot select the heating operation and start the operation.

  This air conditioner can prevent the heating operation from being erroneously started in the forced operation mode.

  In an air conditioner according to a fourteenth aspect based on the thirteenth aspect, in the forced operation mode, the controller selects only automatic operation and performs an operation start operation.

  In this air conditioner, in the forced operation mode, the heating operation is performed when the outside air temperature is low.

  An air conditioner according to a fifteenth aspect of the present invention is the air conditioner according to any one of the first to fourteenth aspects, wherein the room temperature is a temperature detected by a temperature detection sensor attached to the indoor unit.

  In this air conditioner, forced operation can be started in consideration of the temperature around the indoor unit.

  An air conditioner according to a sixteenth aspect of the present invention is the air conditioner according to any one of the first to fourteenth aspects, wherein the room temperature is a temperature detected by a temperature detection sensor attached to the controller.

  In this air conditioner, forced operation can be started in consideration of the temperature around the controller.

  The air conditioner according to a seventeenth aspect of the present invention is the air conditioner according to any one of the first to sixteenth aspects, wherein the indoor humidity is detected by a humidity detection sensor attached to the indoor unit.

  In this air conditioner, forced operation can be started in consideration of the humidity around the indoor unit.

  The air conditioner according to an eighteenth aspect of the present invention is the humidity detected by the humidity detection sensor attached to the controller in any one of the first to sixteenth aspects.

  In this air conditioner, forced operation can be started in consideration of the temperature around the controller.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, when the room is in a state where the room temperature and / or the room humidity needs to be lowered, forced operation for reducing at least one of the room temperature and the room humidity is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and / or indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  In the second invention, it is determined whether to start the forced operation based on the indoor temperature and / or the indoor humidity when the indoor fan is driven and air flows inside the indoor unit. Even when the indoor humidity detection means is inside the indoor unit and heat is trapped inside the indoor unit when the operation is stopped, the indoor temperature and / or indoor humidity can be detected appropriately.

  In the third aspect of the invention, when the predetermined first range is set close to the range where forced operation is started, the room temperature and / or the room humidity approaches the range where forced operation is started. The fan can be driven. Therefore, it is possible to determine whether to start the forced operation by properly detecting the room temperature and / or room humidity.

  In the fourth aspect of the invention, the indoor fan can be continuously driven when the room temperature and / or room humidity is near the range where the forced operation is started. Therefore, it is possible to determine whether to start the forced operation by properly detecting the room temperature and / or room humidity.

  In the fifth aspect, since the indoor fan is periodically driven in the forced operation mode, it can be determined whether the forced operation is started by properly detecting the indoor temperature and / or indoor humidity.

  In the sixth invention, the forced operation is started when the room temperature and / or the room humidity are within a predetermined time near the range where the forced operation is started. Therefore, the forced operation can be started before the forced operation is required, and the indoor temperature and / or the indoor humidity can be lowered.

  In the seventh invention, forced operation is started when at least one of the indoor temperature and the indoor humidity after the indoor fan is driven tends to increase. Therefore, the forced operation can be started before the forced operation is required, and the indoor temperature and / or the indoor humidity can be lowered.

  In the eighth invention, by setting the predetermined second range to a range in which the room temperature and / or the room humidity needs to be reduced, the forced operation can be started when the room temperature and / or the room humidity is high.

  In the ninth aspect, the burden on the user can be reduced by making the air volume when the indoor fan is driven smaller than that during the cooling operation.

  In the tenth invention, by changing the blowing direction when the indoor fan is driven upward, the wind from the indoor unit is not blown directly to the user, so the burden on the user can be reduced.

  In the eleventh aspect, the user can be notified before the forced operation is started.

  In the twelfth aspect, the cooling operation can be prevented from being started when the outside air temperature is low and the cooling operation is unnecessary.

  In the thirteenth aspect, it is possible to prevent the heating operation from being erroneously started in the forced operation mode.

  In the fourteenth invention, in the forced operation mode, the heating operation is performed when the outside air temperature is low.

  In the fifteenth aspect, forced operation can be started in consideration of the temperature around the indoor unit.

  In the sixteenth aspect, forced operation can be started in consideration of the temperature around the controller.

  In the seventeenth aspect, the forced operation can be started in consideration of the humidity around the indoor unit.

  In the eighteenth aspect, forced operation can be started in consideration of the humidity around the controller.

It is a circuit diagram which shows the refrigerant circuit of the air conditioner which concerns on 1st Embodiment of this invention. It is a figure explaining the control part of the air conditioner concerning a 1st embodiment of the present invention. (A) is a figure which shows the surface of a controller, (b) is a figure which shows the back surface of a controller. It is a determination figure in the forced operation mode of the first embodiment (a diagram showing the relationship between room humidity and room temperature). It is a figure explaining control in the case of driving in forced operation mode. It is a figure explaining control in the case of driving in forced operation mode in a 2nd embodiment. It is a figure explaining the control in the case of driving | running in the forced operation mode in 3rd Embodiment. It is the determination figure in the forced operation mode of 4th Embodiment (The figure which shows the relationship between room humidity and room temperature). It is a figure explaining the control in the case of driving | running in the forced operation mode in 4th Embodiment. It is the determination figure in the forced operation mode of 5th Embodiment (The figure which shows the relationship between room humidity and room temperature). It is a figure explaining control in the case of driving in forced operation mode in a 5th embodiment. It is the determination figure in the forced operation mode of a modification (a figure which shows the relationship between room humidity and room temperature).

[First Embodiment]
Hereinafter, the air conditioner 1 which concerns on 1st Embodiment of this invention is demonstrated.

<Overall configuration of the air conditioner 1>
As shown in FIG. 1, the air conditioner 1 of this embodiment includes an indoor unit 2 installed indoors and an outdoor unit 3 installed outdoor. The air conditioner 1 includes a refrigerant circuit in which a compressor 10, a four-way valve 11, an outdoor heat exchanger 12, an expansion valve (decompression mechanism) 13, and an indoor heat exchanger 14 are connected. In the refrigerant circuit, an outdoor heat exchanger 12 is connected to the discharge port of the compressor 10 via a four-way valve 11, and an expansion valve 13 is connected to the outdoor heat exchanger 12. One end of the indoor heat exchanger 14 is connected to the expansion valve 13, and the suction port of the compressor 10 is connected to the other end of the indoor heat exchanger 14 via the four-way valve 11.

  The air conditioner 1 can perform any one of automatic operation, cooling operation, heating operation, dehumidifying operation, and air blowing operation. The controller selects one of the operations to perform an operation start operation, Switching operation and operation stop operation can be performed. Further, the controller can set a set temperature of the room temperature.

  In the cooling operation and the dehumidifying operation, the refrigerant discharged from the compressor 10 sequentially flows from the four-way valve 11 to the outdoor heat exchanger 12, the expansion valve 13, and the indoor heat exchanger 14 as indicated by the solid line arrows in the figure. A cooling cycle or a dehumidification cycle is formed in which the refrigerant having passed through the exchanger 14 returns to the compressor 10 through the four-way valve 11. That is, the outdoor heat exchanger 12 functions as a condenser and the indoor heat exchanger 14 functions as an evaporator.

  On the other hand, in the heating operation, when the four-way valve 11 is switched, the refrigerant discharged from the compressor 10 is transferred from the four-way valve 11 to the indoor heat exchanger 14, the expansion valve 13, and the outdoor heat exchanger as indicated by broken arrows in the figure. A heating cycle is formed in which the refrigerant flows in sequence to 12 and the refrigerant that has passed through the outdoor heat exchanger 12 returns to the compressor 10 through the four-way valve 11. That is, the indoor heat exchanger 14 functions as a condenser, and the outdoor heat exchanger 12 functions as an evaporator.

  An indoor fan 16 that faces the indoor heat exchanger 14 is disposed in the indoor unit 2. At the outlet of the indoor unit 2, an upper and lower flap 17 that changes the blowing direction in the vertical direction is arranged. As shown in FIG. 1, an indoor temperature sensor (indoor temperature detecting means) 21 for detecting the indoor temperature and an indoor humidity sensor (indoor humidity detecting means) 22 for detecting the indoor humidity are attached to the indoor unit 2.

  As shown in FIG. 2, the control unit of the air conditioner 1 includes a compressor 10, a four-way valve 11, an expansion valve 13, a motor 16 a that drives the indoor fan 16, and a motor 17 a that drives the upper and lower flaps 17. The indoor temperature sensor 21, the indoor humidity sensor 22, and the controller 30 are connected. Therefore, the control unit is based on commands from the controller 30 (operation start operation, indoor temperature setting temperature, etc.), the indoor temperature detected by the indoor temperature sensor 21, and the indoor humidity detected by the indoor humidity sensor 22. The operation of the air conditioner 1 is controlled.

  Here, the controller 30 will be described with reference to FIG. FIG. 3A shows a state where the lid 33 on the upper surface of the controller 30 is opened.

  The left part 31 of the controller 30 includes a display part 41, a temperature adjustment dial 42 arranged below the display part 41, an operation start button 43 arranged inside the temperature adjustment dial 42, and a temperature adjustment dial 42. A stop button 44 disposed on the lower right side is provided. Further, an operation selection dial 45, an air volume selection dial 46, and an air direction selection dial 47 are provided in order from the top on the right portion 32 of the controller 30.

  The display unit 41 displays an operation display unit 41a, a set temperature display unit 41b, and an operation mode display unit 41c. The operation display unit 41a displays the operation selected by the operation selection dial 45 (automatic, cooling, heating, dehumidification, or blowing operation). In addition, the temperature that has been changed by rotating the temperature adjustment dial 42 is displayed on the set temperature display portion 41b.

  The temperature adjustment dial 42 changes the set temperature. The set temperature can be increased by rotating the temperature adjustment dial 42 to the right, and the set temperature can be decreased by rotating the temperature adjustment dial 42 to the left. The operation selected by the operation selection dial 45 is started by pressing the operation start button 43, and the operation is stopped by pressing the stop button 44 during the operation.

  The operation selection dial 45 on the right part 32 of the controller 30 can be switched between automatic, cooling, heating, dehumidification, and ventilation. With the air volume selection dial 46, the air volume can be switched between automatic, fine (small amount), weak (small amount), and strong (large amount). With the wind direction selection dial 47, the wind direction can be switched between automatic, up (upward), middle (horizontal) and down (downward).

  And the cover part which covers the whole is provided in the back surface of the controller 30, and the state which removed the cover part is shown in FIG.3 (b). As illustrated in FIG. 3B, a mode switching unit 50 is provided on the back surface of the controller 30 when the cover is removed. The mode switching unit 50 can switch the high temperature prevention mode of the air conditioner 1 to any one of the forced operation mode, the notification mode, and the off mode.

  In the forced operation mode, when the room is in a high temperature state or a high humidity state, the forced operation is automatically started based on the room temperature and the room humidity. Therefore, when the mode is switched to the forced operation mode, the forced operation is automatically started even when the user does not perform the operation start operation on the controller 30 when the room is in a high temperature state or a high humidity state. The room temperature and the room humidity are reduced.

  When switching to the forced operation mode, the user cannot select the heating (heating operation) by the controller 30 and perform the operation start operation, selects the automatic (automatic operation), and starts the operation of the automatic operation. Only operations can be performed. In the air conditioner 1, when the automatic operation is started by the user, the air volume is made lower than the air volume of the cooling operation, and the upper and lower flaps 17 are arranged near the upper end of the movable range to change the blowing direction upward.

  In the notification mode, when the room is in a high temperature state or a high humidity state, a notification that prompts the start of operation is automatically performed based on the room temperature and the room humidity.

  In the air conditioner 1, when determining whether to start forced operation in the forced operation mode or when determining whether to start notification in the notification mode, the determination diagram for the indoor temperature and the indoor humidity is used. In the determination diagram, as shown in FIG. 4, the vertical axis indicates indoor humidity (relative humidity), and the horizontal axis indicates indoor temperature.

  Hereinafter, the forced operation mode will be described.

  FIG. 4 is an example of a determination diagram in the forced operation mode. In this determination diagram, a high temperature zone, a monitoring zone, and a standby zone are set. The high temperature zone is an area where the room is in a high temperature state or a high humidity state and the room temperature or the room humidity needs to be lowered. The standby zone is a region far from the high temperature zone, and is a region where it is not necessary to reduce the room temperature or the room humidity. The monitoring zone is a region close to the high temperature zone, and is a region where the room temperature and the room humidity are easily changed to the high temperature zone.

In the determination diagram of FIG. 4, points A to F indicate points that are the following indoor temperature and indoor humidity.
Point A: the room temperature is 27 degrees and the room humidity is 100% Point B: the room temperature is 27 degrees and the room humidity is y ₁ between 70 and 80% Point C : The room temperature is 33 degrees and the room humidity is 30%. Point D: The room temperature is 28 degrees and the room humidity is 100%. Point E: The room temperature is 28 degrees. Point where humidity is y ₂ between 70 and 80% · Point F: Point where room temperature is 34 degrees and room humidity is y ₃ between 30 and 40%

Then, a line l ₁ of connecting the points A and B and the point C, a line between the waiting zone and monitoring zone, a line l ₂ connecting a point D and point E and point F, and monitoring zone The line between the hot zone. Therefore, as shown in the determination diagram of FIG. 4, the standby zone is the lower left region of the line l ₁ , and the high temperature zone is the upper right region of the line l ₂ (the room temperature and the room humidity are on the line l ₂ . The monitoring zone is a region (including the case where the room temperature and the room humidity are on the line l ₁ ) sandwiched between the high temperature zone and the standby zone.

  Therefore, when the operation of the air conditioner 1 is stopped, when the operation mode is switched to the forced operation mode, the operation operation differs depending on whether the room temperature and the room humidity are in the high temperature zone, the monitoring zone, and the standby zone. Accordingly, the operation in each zone after switching to the forced operation mode will be described.

  When the room temperature and the room humidity are in the high temperature zone, it is necessary to reduce the room temperature and the room humidity, so that the cooling operation (forced operation) is started. In the air conditioner 1, the cooling operation in the forced operation mode is a cooling operation at a set temperature of 28 ° C. Then, when the room temperature decreases by 1 degree or more from the set temperature (when the room temperature becomes 27 degrees or less), the cooling operation is in a thermo-off state. Here, the thermo-off state is a state where the compressor is stopped and the indoor fan 16 is driven. In the air conditioner 1, when the cooling operation is in the thermo-off state, the air volume is made lower than that in the cooling operation, and the upper and lower flaps 17 are arranged near the upper end of the movable range to change the blowing direction upward.

  When the room temperature and the room humidity are in the monitoring zone, the room temperature and the room humidity are likely to change to the high temperature zone, and therefore it is necessary to detect the room temperature and the room humidity appropriately, so the air blowing operation is performed. The air blowing operation is an operation in which the compressor is stopped and the indoor fan 16 of the indoor unit is driven. In the air conditioner 1, since the indoor temperature sensor 21 and the indoor humidity sensor 22 are attached to the inside of the indoor unit 2, when the operation is stopped, the upper and lower flaps 17 are closed and heat is trapped inside the indoor unit. In addition, the room temperature and the room humidity may not be detected properly. Therefore, when the room temperature and the room humidity are in the monitoring zone, the air flow is started inside the indoor unit 2 by starting the air blowing operation, so that the room temperature and the room humidity can be properly detected. Here, in the air blowing operation when the room temperature and the room humidity are in the monitoring zone, the air volume is made lower than the air volume of the cooling operation, and the upper and lower flaps 17 are arranged near the upper end of the movable range so that the blowing direction is upward. change.

  When the room temperature and the room humidity are in the standby zone, it is far from the high temperature zone, and it is not necessary to reduce the room temperature and the room humidity, so that the cooling operation and the air blowing operation are not performed.

  Thus, in this embodiment, in the forced operation mode, the cooling operation (forced operation) is started when the room temperature and the room humidity are in the high temperature zone. Further, after the cooling operation is started, the cooling operation is stopped when the thermo-off state continues for a predetermined time.

  Next, the control in the forced operation mode of the air conditioner 1 will be described with reference to FIG.

  First, when the operation of the air conditioner 1 is stopped, the mode is switched to the forced operation mode by the mode switching unit 50 (see FIG. 3B) of the controller 30 (step S1). Here, a case will be described in which the room temperature and the room humidity when switched to the forced operation mode are in the standby zone (see FIG. 4).

  In the forced operation mode, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the monitoring zone (step S2). When the room temperature and the room humidity change from the standby zone to the high temperature zone, it is considered that the room temperature and the room humidity change from the standby zone to the monitoring zone and then to the high temperature zone. Therefore, in step S2, based on whether the room temperature and the room humidity are in the monitoring zone, it is determined whether the room temperature and the room humidity are close to a high temperature zone where the cooling operation needs to be started.

  When it is determined that the room temperature and the room humidity are in the monitoring zone (step S2: YES), the indoor fan 16 is driven to start the air blowing operation (step S3). When the room temperature and the room humidity are in the monitoring zone near the high temperature zone, the air flows into the indoor unit 2 by starting the air blowing operation, so that the room temperature and the room humidity can be properly detected.

  On the other hand, when it is determined that the room temperature and the room humidity are not in the monitoring zone (step S2: NO), since the room temperature and the room humidity are in the standby zone, it is determined whether the room temperature and the room humidity are in the monitoring zone. (Step S2).

  Then, after starting the air blowing operation in step S3, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the monitoring zone (step S4). When it is determined that the room temperature and the room humidity are in the monitoring zone (step S4: YES), the room temperature and the room humidity can be properly detected because the room temperature and the room humidity are in the monitoring zone near the high temperature zone. As described above, the air blowing operation is continued (step S3).

  On the other hand, when it is determined that the room temperature and the room humidity are not in the monitoring zone (step S4: NO), it is considered that the room temperature and the room humidity have changed to the standby zone or the high temperature zone after starting the air blowing operation. . Therefore, it is determined whether the room temperature and the room humidity are in the standby zone (step S5). If it is determined that the room temperature and the room humidity are in the standby zone (step S4: YES), the air temperature operation is stopped because the room temperature and the room humidity have changed from the monitoring zone close to the high temperature zone to the standby zone. (Step S6). Then, it transfers to step S2 and it is judged whether indoor temperature and indoor humidity exist in a monitoring zone. On the other hand, when it is determined that the room temperature and the room humidity are not in the standby zone (step S5: NO), the room temperature and the room humidity are in the high temperature zone, and it is necessary to reduce the room temperature and the room humidity. Cooling operation is started (step S7).

  After starting the cooling operation, it is determined whether the cooling operation is in the thermo-off state based on the room temperature detected by the room temperature sensor 21 and the set temperature (step S8). In the air conditioner 1, when the cooling operation is the set temperature 28 ° C. and the room temperature becomes 27 ° C. or less, the thermo-off state is set. Therefore, in step S8, based on whether the room temperature is 27 ° C. or less, it is determined whether the cooling operation is in the thermo-off state. And when it is judged that it is not a thermo-off state (step S8: NO), since indoor temperature is higher than 27 degreeC, it transfers to step S7 and continues air_conditionaing | cooling operation.

  On the other hand, when it is determined that the cooling operation is in the thermo-off state (step S8: YES), in the thermo-off state, it is determined whether the room temperature detected by the room temperature sensor 21 has changed to a temperature higher than the set temperature ( Step S9). When it is determined that the room temperature has changed to a temperature higher than the set temperature (step S9: YES), the process proceeds to step S7, and the cooling operation is started. When it is determined that the room temperature has not changed to a temperature higher than the set temperature (step S9: NO), the thermo-off state is continued.

  When the thermo-off state is continued, it is determined whether a predetermined time has elapsed (step S10). When it is determined that the predetermined time has elapsed in the thermo-off state (step S10: YES), the cooling operation is stopped (step S11). In the air conditioner 1, since the cooling operation is stopped after a predetermined time has passed in the thermo-off state, even when the indoor temperature and the indoor humidity rise when the cooling operation is stopped, the cooling operation is started immediately. Can be prevented.

  On the other hand, when it is determined that the predetermined time has not elapsed in the thermo-off state (step S10: NO), the process proceeds to step S9 to determine whether the room temperature has changed to a temperature higher than the set temperature.

<Characteristics of the air conditioner of this embodiment>
In the air conditioner 1 of the present embodiment, when the room is in a state where it is necessary to reduce the room temperature and the room humidity, the cooling operation for reducing the room temperature and the room humidity is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  Moreover, in the air conditioner 1 of this embodiment, since the indoor fan 16 is driven and air is flowing through the indoor unit 2, it is determined whether to start the cooling operation based on the indoor temperature and the indoor humidity. Even when the indoor temperature sensor 21 and the indoor humidity sensor 22 are inside the indoor unit 2 and heat is trapped inside the indoor unit 2 when the operation is stopped, the indoor temperature and the indoor humidity can be detected appropriately.

  Furthermore, in the air conditioner 1 of the present embodiment, when the monitoring zone is close to the high temperature zone where the cooling operation is started, the room temperature and the room humidity are close to the range where the cooling operation is started. The indoor fan 16 can be driven. Therefore, it can be determined whether the cooling operation is started by properly detecting the room temperature and the room humidity.

  In addition, in the air conditioner 1 of this embodiment, after the indoor fan 16 is driven, when the indoor temperature and the indoor humidity are in a monitoring zone near the high temperature zone where the cooling operation is started, the indoor fan 16 Can continue driving. Therefore, it can be determined whether the cooling operation is started by properly detecting the room temperature and the room humidity.

  In the air conditioner 1 of the present embodiment, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone by setting the high temperature zone to a range in which the room temperature and the room humidity need to be reduced. it can.

  Furthermore, in the air conditioner 1 of the present embodiment, the burden on the user can be reduced by making the air volume when the indoor fan 16 is driven smaller than that during the cooling operation.

  In addition, in the air conditioner 1 of the present embodiment, when the indoor fan 16 is driven, the direction of the upper and lower flaps 17 of the indoor unit 2 is changed to change the blowing direction upward. Since the wind is not blown directly to the user, the burden on the user can be reduced.

  Further, in the air conditioner 1 of the present embodiment, in the forced operation mode, the controller 30 cannot select the heating operation and perform the operation start operation, so that the heating operation can be prevented from being erroneously started.

  Furthermore, in the air conditioner 1 of this embodiment, in the forced operation mode, only the automatic operation can be selected and the operation start operation can be performed, so that the heating operation is performed when the outside air temperature is low.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG. The air conditioner of the second embodiment is different from the air conditioner of the first embodiment at the time when the cooling operation is started in the forced operation mode. Since other configurations are the same as those in the first embodiment, the same reference numerals are used and description thereof is omitted as appropriate.

  In the air conditioner of the second embodiment, the determination diagram for determining the start of forced operation is the same as the determination diagram (FIG. 4) in the air conditioner 1 of the first embodiment.

  In the air conditioner of the first embodiment, in the forced operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, whereas the air conditioner of the second embodiment is forced to In the operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, and the cooling operation is started when the room temperature and the room humidity are in the monitoring zone for a predetermined time.

  Further, in the air conditioner of the second embodiment, similarly to the air conditioner of the first embodiment, in the forced operation mode, the cooling operation is stopped when a predetermined time has elapsed in the thermo-off state of the cooling operation.

  Next, control in the forced operation mode of the air conditioner of the second embodiment will be described.

  First, when the operation of the air conditioner is stopped, the mode is switched to the forced operation mode by the mode switching unit 50 of the controller (see FIG. 3B) (step S21). Here, the case where the room temperature and the room humidity when the mode is switched to the forced operation mode is in the standby zone will be described.

  In the forced operation mode, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the monitoring zone (step S22). When the room temperature and the room humidity change from the standby zone to the high temperature zone, it is considered that the room temperature and the room humidity change from the standby zone to the monitoring zone and then to the high temperature zone. Therefore, in step S22, based on whether the room temperature and the room humidity are in the monitoring zone, it is determined whether the room temperature and the room humidity are close to a high temperature zone where the cooling operation needs to be started.

  When it is determined that the room temperature and the room humidity are in the monitoring zone (step S22: YES), the indoor fan 16 is driven to start the air blowing operation (step S23). When the room temperature and the room humidity are in the monitoring zone near the high temperature zone, the air flows into the indoor unit 2 by starting the air blowing operation, so that the room temperature and the room humidity can be properly detected.

  On the other hand, when it is determined that the room temperature and the room humidity are not in the monitoring zone (step S22: NO), the room temperature and the room humidity are in the standby zone. Continue to determine if you are in the monitoring zone.

  Then, after starting the air blowing operation in step S23, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the monitoring zone (step S24). When it is determined that the room temperature and the room humidity are not in the monitoring zone (step S24: NO), it is considered that the room temperature and the room humidity have changed to the standby zone or the high temperature zone after starting the air blowing operation. Therefore, it is determined whether the room temperature and the room humidity are in the standby zone (step S25). If it is determined that the room temperature and the room humidity are in the standby zone (step S25: YES), since the room temperature and the room humidity have changed from the monitoring zone close to the high temperature zone to the standby zone, the air blowing operation is stopped (step S25). S26), the process proceeds to step S22, and the determination whether the room temperature and the room humidity are in the monitoring zone is continued. On the other hand, if it is determined in step S25 that the room temperature and the room humidity are not in the standby zone (step S25: NO), the room temperature and the room humidity are in the high temperature zone, and the room temperature and the room humidity need to be reduced. Therefore, the cooling operation is started (step S27).

  On the other hand, after starting the air blowing operation in step S23, when it is determined that the room temperature and the room humidity are in the monitoring zone (step S24: YES), a predetermined time is passed after the room temperature and the room humidity are in the monitoring zone. It is determined whether or not elapses (step S28). If it is determined that the predetermined time has passed in the monitoring zone (step S28: YES), the predetermined time has passed in a state close to the high temperature zone, so the indoor temperature and the indoor humidity are in the high temperature zone. Therefore, the cooling operation is started (step S27). On the other hand, when it is determined that the room temperature and the room humidity have not passed the predetermined time in the monitoring zone (step S28: NO), the process proceeds to step S23 and the air blowing operation is continued.

  After starting the cooling operation in step S27, it is determined whether the cooling operation is in the thermo-off state based on the room temperature and the set temperature detected by the room temperature sensor 21 (step S29). The air conditioner enters a thermo-off state when the cooling operation is at a set temperature of 28 ° C. and the room temperature becomes 27 ° C. or lower. Therefore, in step S31, it is determined whether the forced operation is in the thermo-off state based on whether the room temperature is 27 ° C. or lower. And when it is judged that it is not a thermo-off state (step S29: NO), since indoor temperature is higher than 27 degreeC, it transfers to step S27 and continues air_conditionaing | cooling operation.

  On the other hand, when it is determined that the cooling operation is in the thermo-off state (step S29: YES), in the thermo-off state, it is determined whether the room temperature detected by the room temperature sensor 21 has changed to a temperature higher than the set temperature ( Step S30). When it is determined that the room temperature has changed to a temperature higher than the set temperature (step S30: YES), the process proceeds to step S27 and the cooling operation is started. When it is determined that the room temperature has not changed to a temperature higher than the set temperature (step S30: NO), the thermo-off state is continued.

  When the thermo-off state is continued, it is determined whether a predetermined time has elapsed (step S31). When it is determined that the predetermined time has elapsed in the thermo-off state (step S31: YES), the cooling operation is stopped (step S32). In the air conditioner, the cooling operation is stopped after a predetermined time has passed in the thermo-off state, so that when the cooling operation is stopped, the cooling operation is started immediately even if the indoor temperature and the indoor humidity rise. Can be prevented.

  On the other hand, when it is determined that the predetermined time has not elapsed in the thermo-off state (step S31: NO), the process proceeds to step S30 to determine whether the room temperature has changed to a temperature higher than the set temperature.

<Characteristics of the air conditioner of this embodiment>
In the air conditioner 1 of the present embodiment, similarly to the air conditioner 1 of the first embodiment, when the room is in a state where the room temperature and the room humidity need to be lowered, the room temperature and the room humidity are lowered. The cooling operation is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  In the air conditioner 1 of the present embodiment, after the indoor fan 16 is driven, the cooling operation is automatically started when the room temperature and the room humidity are in the monitoring zone for a predetermined time. Therefore, the indoor temperature and the indoor humidity can be lowered before the cooling operation is required, so that the indoor temperature and the indoor humidity can be lowered.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIG. The air conditioner according to the third embodiment is different from the air conditioner according to the first embodiment at the time when the cooling operation is started in the forced operation mode. Since other configurations are the same as those in the first embodiment, the same reference numerals are used and description thereof is omitted as appropriate.

  In the air conditioner of the third embodiment, the determination diagram for determining the start of forced operation is the same as the determination diagram (FIG. 4) in the air conditioner 1 of the first embodiment.

  In the air conditioner of the first embodiment, in the forced operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, whereas in the air conditioner of the third embodiment, In the forced operation mode, the cooling operation is started when the room temperature or room humidity after the indoor fan 16 is driven rises above the room temperature or room humidity before the indoor fan 16 is driven.

  In the air conditioner of the third embodiment, as in the air conditioner of the first embodiment, in the forced operation mode, the cooling operation is stopped when a predetermined time elapses in the thermo-off state of the cooling operation.

  Next, control in the forced operation mode of the air conditioner will be described.

  First, when the operation of the air conditioner is stopped, the mode is switched to the forced operation mode by the mode switching unit 50 (see FIG. 3B) of the controller (step S41). Here, the case where the room temperature and the room humidity when the mode is switched to the forced operation mode is in the standby zone will be described.

  In the forced operation mode, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the monitoring zone (step S42). When the room temperature and the room humidity change from the standby zone to the high temperature zone, it is considered that the room temperature and the room humidity change from the standby zone to the monitoring zone and then to the high temperature zone. Therefore, in step S42, based on whether the room temperature and the room humidity are in the monitoring zone, it is determined whether the room temperature and the room humidity are close to a high temperature zone where the cooling operation needs to be started.

  When it is determined that the room temperature and the room humidity are in the monitoring zone (step S42: YES), the indoor fan 16 is driven to start the air blowing operation (step S43). When the room temperature and the room humidity are in the monitoring zone near the high temperature zone, the air flows into the indoor unit 2 by starting the air blowing operation, so that the room temperature and the room humidity can be properly detected.

  On the other hand, when it is determined that the room temperature and the room humidity are not in the monitoring zone (step S42: NO), the room temperature and the room humidity are considered to be in the standby zone. Continue to determine if room humidity is in the monitoring zone.

  Then, after starting the air blowing operation in step S43, it is determined whether the indoor temperature detected by the indoor temperature sensor 21 or the indoor humidity detected by the indoor humidity sensor 22 is higher than before the air blowing operation is started ( Step S44). If it is determined that the room temperature and the room humidity are higher than before the start of the air blowing operation (step S44: YES), the room temperature and the room humidity are approaching a high temperature zone where the cooling operation needs to be started or the room It is thought that temperature and room humidity have changed to a high temperature zone. For this reason, since it is necessary to reduce indoor temperature and indoor humidity, a cooling operation is started (step S45).

  On the other hand, when it is determined that the room temperature and the room humidity are not higher than before the air blowing operation is started (step S44: NO), the process proceeds to step S43 and the air blowing operation is continued.

  After starting the cooling operation in step S45, it is determined whether the cooling operation is in the thermo-off state based on the room temperature detected by the room temperature sensor 21 and the set temperature (step S46). The air conditioner enters a thermo-off state when the cooling operation is at a set temperature of 28 ° C. and the room temperature becomes 27 ° C. or lower. Therefore, in step S46, it is determined whether the cooling operation is the thermo-off state based on whether the room temperature is 27 ° C. or lower. And when it is judged that it is not a thermo-off state (step S46: NO), since indoor temperature is higher than 27 degreeC, it transfers to step S45 and continues air_conditionaing | cooling operation.

  On the other hand, when it is determined that the cooling operation is in the thermo-off state (step S46: YES), in the thermo-off state, it is determined whether the room temperature detected by the room temperature sensor 21 has changed to a temperature higher than the set temperature ( Step S47). When it is determined that the room temperature has changed to a temperature higher than the set temperature (step S47: YES), the process proceeds to step S45, and the cooling operation is started. When it is determined that the room temperature has not changed to a temperature higher than the set temperature (step S47: NO), the thermo-off state is continued.

  When the thermo-off state is continued, it is determined whether a predetermined time has elapsed (step S48). When it is determined that the predetermined time has elapsed in the thermo-off state (step S48: YES), the cooling operation is stopped (step S49). In the air conditioner, the cooling operation is stopped after a predetermined time has passed in the thermo-off state, so that when the cooling operation is stopped, the cooling operation is started immediately even if the indoor temperature and the indoor humidity rise. Can be prevented.

  On the other hand, when it is determined that the predetermined time has not elapsed in the thermo-off state (step S48: NO), the process proceeds to step S47 to determine whether the room temperature has changed to a temperature higher than the set temperature.

<Characteristics of the air conditioner of this embodiment>
In the air conditioner of the present embodiment, as in the air conditioner 1 of the first embodiment, when the room is in a state where the room temperature and the room humidity need to be lowered, the room temperature and the room humidity are lowered. The cooling operation is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  Further, in the air conditioner 1 of the present embodiment, when the indoor temperature or indoor humidity after the indoor fan 16 is driven rises higher than the indoor temperature or indoor humidity before the indoor fan 16 is driven, the cooling is performed. Operation starts. Therefore, the cooling operation can be started before the cooling operation is required, and the indoor temperature and / or the indoor humidity can be lowered.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIGS. The air conditioner of the fourth embodiment is different from the air conditioner of the first embodiment in the time when the air blowing operation is started in the forced operation mode and the time when the cooling operation is started. Since other configurations are the same as those in the first embodiment, the same reference numerals are used and description thereof is omitted as appropriate.

  In the air conditioner of the fourth embodiment, the determination diagram shown in FIG. 8 is used as the determination diagram for determining the start of the cooling operation. The vertical axis of the judgment diagram indicates indoor humidity (relative humidity), and the horizontal axis indicates indoor temperature.

  As shown in FIG. 8, a high temperature zone and a standby zone are set in the determination diagram. The high temperature zone shown in FIG. 8 is a region where the indoor temperature and the indoor humidity need to be reduced, and the standby zone is a region where the indoor temperature and the indoor humidity need not be reduced. And in the air conditioner of 4th Embodiment, since the monitoring zone is not set, after switching to forced operation mode, ventilation operation | movement is started regularly. The blowing operation is stopped when a predetermined blowing time has elapsed.

As shown in the decision diagram of Figure 8, the waiting zone is a lower left region in FIG. 4 and the same line l ₂ of the first embodiment, the high temperature zone, upper right region of a line l ₂ (room temperature and Including the case where the room humidity is on line l ₂ ).

  When the room temperature and the room humidity are in the high temperature zone, it is necessary to reduce the room temperature and the room humidity, so that the cooling operation at the set temperature of 28 ° C. is started. Further, the cooling operation in the forced operation mode becomes a thermo-off state when the room temperature becomes 27 degrees or less.

  On the other hand, when the room temperature and the room humidity are in the standby zone, the room temperature and the room humidity do not need to be reduced, but the standby zone is a region far from the high temperature zone and a region close to the high temperature zone (indoors). Therefore, when the room temperature or the room humidity tends to increase, the cooling operation is started because the temperature is close to the high temperature zone. On the other hand, when the room temperature and the room humidity are in the standby zone and the room temperature or the room humidity does not tend to increase, the cooling operation is not started. Therefore, when the room temperature and the room humidity are in the standby zone, the air blowing operation is stopped when the predetermined air blowing time has elapsed after the air blowing operation is started and the air cooling operation is not started.

  Thus, in the air conditioner of the first embodiment, in the forced operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, whereas in the air conditioner of the fourth embodiment, In the forced operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, and after starting the air blowing operation, the room temperature or the room humidity (at least one of the room temperature and the room humidity) increases. When there is a tendency, the cooling operation is started.

  Further, in the air conditioner of the fourth embodiment, as in the air conditioner of the first embodiment, the cooling operation is stopped when a predetermined time has elapsed in the thermo-off state in the forced operation mode.

  Next, control in the forced operation mode of the air conditioner will be described.

  First, when the operation of the air conditioner is stopped, the mode is switched to the forced operation mode by the mode switching unit 50 (see FIG. 3B) of the controller 30 (step S51). Here, the case where the room temperature and the room humidity when the mode is switched to the forced operation mode is in the standby zone will be described.

  In the forced operation mode, it is determined whether a predetermined time has elapsed (step S52). If it is determined that the predetermined time has not elapsed (step S52: NO), the determination is continued until the predetermined time has elapsed. And when predetermined time passes (step S52: YES), ventilation operation is started (S53). After starting the air blowing operation, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the high temperature zone (step S54). When it is determined that the room temperature and the room humidity are in the high temperature zone (step S54: YES), the cooling operation is started (step S55).

  On the other hand, when it is determined that the room temperature and the room humidity are not in the high temperature zone (step S54: NO), it is determined whether a predetermined blowing time has elapsed after the start of the blowing operation (step S56). If it is determined that the predetermined blowing time has elapsed after the start of the air blowing operation (step S56: YES), the air blowing operation is stopped (step S57). Then, the process proceeds to step S52, and after starting the air blowing operation in step S53, it is determined whether a predetermined air blowing time has elapsed.

  On the other hand, if it is determined that the predetermined blowing time has not elapsed after the start of the air blowing operation in step S53 (step S56: NO), the indoor temperature detected by the indoor temperature sensor 21 after the air blowing operation is started. It is determined whether the indoor humidity detected by the temperature or indoor humidity sensor 22 is increasing (step S58). When it is determined that the room temperature or the room humidity is increasing (step S58: YES), since the room temperature or the room humidity is approaching the high temperature zone, the cooling operation is started (step S55). On the other hand, when it is determined that the room temperature or the room humidity is not increasing (step S58: NO), the process proceeds to step S56, and after starting the air blowing operation, it is determined whether a predetermined air blowing time has elapsed.

  After starting the cooling operation in step S55, it is determined whether the cooling operation is in the thermo-off state based on the room temperature and the set temperature detected by the room temperature sensor 21 (step S59). The air conditioner enters a thermo-off state when the cooling operation is at a set temperature of 28 ° C. and the room temperature becomes 27 ° C. or lower. Therefore, in step S59, it is determined whether the cooling operation is in the thermo-off state based on whether the room temperature is 27 ° C. or lower. And when it is judged that it is not a thermo-off state (step S59: NO), since indoor temperature is higher than 27 degreeC, it transfers to step S55 and continues air_conditionaing | cooling operation.

  On the other hand, if it is determined that the cooling operation is in the thermo-off state (step S59: YES), it is determined in the thermo-off state whether the room temperature detected by the room temperature sensor 21 has changed to a temperature higher than the set temperature ( Step S60). When it is determined that the room temperature has changed to a temperature higher than the set temperature (step S60: YES), the process proceeds to step S55 and the cooling operation is performed. When it is determined that the room temperature has not changed to a temperature higher than the set temperature (step S60: NO), the thermo-off state is continued.

  When the thermo-off state is continued, it is determined whether a predetermined time has elapsed (step S61). When it is determined that the predetermined time has elapsed in the thermo-off state (step S61: YES), the cooling operation is stopped (step S62). In the air conditioner, the cooling operation is stopped after a predetermined time has passed in the thermo-off state, so that when the cooling operation is stopped, the cooling operation is started immediately even if the indoor temperature and the indoor humidity rise. Can be prevented.

  On the other hand, when it is determined that the predetermined time has not elapsed in the thermo-off state (step S61: NO), the process proceeds to step S60 to determine whether the room temperature has changed to a temperature higher than the set temperature.

<Characteristics of the air conditioner of this embodiment>
In the air conditioner of the present embodiment, as in the air conditioner 1 of the first embodiment, when the room is in a state where the room temperature and the room humidity need to be lowered, the room temperature and the room humidity are lowered. The cooling operation is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  Further, in the air conditioner 1 of the present embodiment, since the indoor fan 16 is periodically driven in the forced operation mode, it can be determined whether the cooling operation is started by properly detecting the indoor temperature and the indoor humidity.

  Furthermore, in the air conditioner 1 of this embodiment, after the indoor fan 16 is driven, the cooling operation is started when at least one of the indoor temperature and the indoor humidity tends to increase. Therefore, the cooling operation can be started before the cooling operation is required, and the indoor temperature and the indoor humidity can be lowered.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIGS. The air conditioner of the fifth embodiment is different from the air conditioner of the first embodiment at the time when forced operation is started. Since other configurations are the same as those in the first embodiment, the same reference numerals are used and description thereof is omitted as appropriate.

  In the air conditioner of the fifth embodiment, the determination diagram shown in FIG. 10 is used as the determination diagram for determining the start of forced operation. The vertical axis of the judgment diagram indicates indoor humidity (relative humidity), and the horizontal axis indicates indoor temperature.

  As shown in FIG. 10, a high temperature zone, a high humidity zone, a monitoring zone, and a standby zone are set in the determination diagram. The high temperature zone shown in FIG. 10 is a region where the room temperature and the room humidity need to be reduced. The high humidity zone is an area where the indoor humidity needs to be lowered. The standby zone is a region far from the high-temperature zone and the high-humidity zone, and is a region where it is not necessary to reduce the room temperature or the room humidity. The monitoring zone is a region close to the high temperature zone and the high humidity zone, and is a region where the room temperature and the room humidity are easily changed to the high temperature zone and the high humidity zone.

In the determination diagram of FIG. 10, points A _{1 to} E ₁ indicate points that are the following indoor temperature and indoor humidity.
A ₁ point: the room temperature is 25 degrees and the room humidity is y ₄ between 80 to 90% B ₁ point: the room temperature is 33 degrees and the room humidity is 30% C ₁ point: The room temperature is 25 degrees and the room humidity is 100%. D ₁ point: The room temperature is 28 degrees and the room humidity is y ₂ between 70 and 80%. E ₁ point: the room temperature is 34 degrees and the room humidity is y ₃ between 30 to 40%. F ₁ point: the room temperature is 28 degrees and the room humidity is 100%.

A line l ₁₁ connecting the A ₁ point and the B ₁ point is a line between the standby zone and the monitoring zone, and a line l ₁₂ connecting the C ₁ point and the D ₁ point is connected to the monitoring zone and the high humidity. A line between the zone D _{1 and the} point E ₁ connecting the line 1 ₁₃ is a line between the monitoring zone and the high temperature zone, and a line connecting the point D _{1 and the} point F ₁ l ₁₄ is the line between the humid and hot zones.

Therefore, as shown in the determination diagram of FIG. 10, the standby zone is the lower left area of the line l ₁₁ , and the high temperature zone is the upper right area of the line l _{13 and} the right area of the line l ₁₄ (room temperature and humidity). a but which might reside on the line l ₁₃ above and l _14), high humidity zones, upper right in the left area (indoor temperature and the indoor humidity of the line l ₁₄ line l ₁₂ is on the line l ₁₂ The monitoring zone is a region sandwiched between the high temperature zone, the high humidity zone, and the standby zone (including the case where the room temperature and the room humidity are on the line l ₁₁ ).

  Therefore, when the operation of the air conditioner is stopped, when the operation mode is switched to the forced operation mode, the operation operation differs when the room temperature and the room humidity are in the high temperature zone, the high humidity zone, the monitoring zone, and the standby zone. Accordingly, the operation in each zone after switching to the forced operation mode will be described.

  In the present embodiment, the forced operation in the forced operation mode is either a dehumidifying operation or a cooling operation at a set temperature of 28 ° C.

  When the room temperature and the room humidity are in the high temperature zone, it is necessary to reduce the room temperature and the room humidity, so that the cooling operation at the set temperature of 28 ° C. is started. Further, the cooling operation in the forced operation mode is in a thermo-off state when the room temperature becomes 27 degrees or less.

  When the room temperature and the room humidity are in the high humidity zone, the room temperature is lower than 28 ° C., so there is no need to lower the room temperature, but the room humidity needs to be lowered, so that the cooling operation is not started. The dehumidifying operation is started. Dehumidifying operation in forced operation mode is switched to cooling operation when the room temperature and room humidity are in the high humidity zone after starting the dehumidifying operation, and the room temperature and room humidity are changed from the high humidity zone to the monitoring zone Is stopped. Further, in the dehumidifying operation when the room temperature and the room humidity are in the high humidity zone, the air volume is lower than the air volume of the cooling operation, and the upper and lower flaps 17 are arranged near the upper end of the movable range so that the blowing direction is upward. change. When switching to the cooling operation after the dehumidifying operation, the air volume during the dehumidifying operation is increased to the air volume during the cooling operation, and the air volume is gradually increased during the cooling operation.

  When the room temperature and the room humidity are in the monitoring zone, the room temperature and the room humidity easily change to the high temperature zone and the room humidity. Therefore, it is necessary to detect the room temperature and the room humidity appropriately. I do.

  Further, when the room temperature and the room humidity are in the standby zone, it is not necessary to reduce the room temperature and the room humidity, and therefore the air blowing operation and the cooling operation are not performed.

  Thus, in the air conditioner of the first embodiment, in the forced operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, whereas in the air conditioner of the fifth embodiment, In the forced operation mode, the cooling operation is started when the room temperature and the room humidity are in the high temperature zone, and the dehumidifying operation is started when the room temperature and the room humidity are in the high humidity zone.

  In the air conditioner of the fifth embodiment, the cooling operation in the forced operation mode is stopped when a predetermined time has elapsed in the thermo-off state, as in the air conditioner of the first embodiment. On the other hand, the dehumidifying operation in the forced operation mode is switched to the cooling operation when the room temperature and the room humidity are changed to the high temperature zone, and is stopped when the room temperature and the room humidity are changed to the monitoring zone.

  Next, control in the forced operation mode of the air conditioner will be described with reference to FIG.

  First, when the operation of the air conditioner is stopped, the mode is switched to the forced operation mode by the mode switching unit 50 (see FIG. 3B) of the controller 30 (step S71). Here, the case where the room temperature and the room humidity when the mode is switched to the forced operation mode is in the standby zone will be described.

  In the forced operation mode, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the monitoring zone (step S72). When the room temperature and the room humidity change from the standby zone to the high temperature zone or the high humidity zone, it is considered that the room temperature and the room humidity change from the standby zone to the monitoring zone and then to the high temperature zone or the high humidity zone. Therefore, in step S72, based on whether the room temperature and the room humidity are in the monitoring zone, the room temperature and the room humidity are changed to a high temperature zone and a high humidity zone where the forced operation (cooling operation or dehumidifying operation) needs to be started. Determine if you are approaching.

  If it is determined that the room temperature and the room humidity are in the monitoring zone (step S72: YES), the indoor fan 16 is driven to start the air blowing operation (step S73). When the room temperature and the room humidity are in the monitoring zone near the high temperature zone and the high humidity zone, the air flows into the indoor unit 2 by starting the air blowing operation, so that the room temperature and the room humidity can be properly detected. .

  On the other hand, when it is determined that the room temperature and the room humidity are not in the monitoring zone (step S72: NO), the room temperature and the room humidity are considered to be in the standby zone, so the room temperature and the room humidity are in the monitoring zone. This determination is continued (step S72).

  Then, after starting the air blowing operation in step S73, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the high humidity zone (step S74). If it is determined that the room temperature and the room humidity are not in the high humidity zone (step S74: NO), it is determined whether the room temperature and the room humidity are in the monitoring zone (step S75). If it is determined that the room temperature and the room humidity are not in the monitoring zone (step S75: NO), it is determined whether the room temperature and the room humidity are in the standby zone (step S76). When it is determined that the room temperature and the room humidity are not in the standby zone (step S76: NO), it is considered that the room temperature and the room humidity are in the high temperature zone, so the cooling operation is started (step S77).

  When it is determined in step S74 that the room temperature and the room humidity are in the high humidity zone (step S74: YES), the dehumidifying operation is started (step S78).

  Then, after starting the dehumidifying operation, it is determined whether the room temperature detected by the room temperature sensor 21 and the room humidity detected by the room humidity sensor 22 are in the high humidity zone (step S79). If it is determined that the room temperature and the room humidity are in the high humidity zone (step S79: YES), the cooling operation is started because the humidity has not been reduced by the dehumidifying operation (step S77). On the other hand, if it is determined that the room temperature and the room humidity are not in the high humidity zone (step S79: NO), the room humidity has decreased and the room temperature and the room humidity have changed to the monitoring zone or the standby zone. Then, the dehumidifying operation is stopped (step S80), the process proceeds to step S73, and the blowing operation is continued.

  On the other hand, when it is determined in step S75 that the room temperature and the room humidity are in the monitoring zone (step S75: YES), the process proceeds to step S73 and the air blowing operation is continued.

  When it is determined in step S76 that the room temperature and the room humidity are in the standby zone (step S76: YES), the air blowing operation is stopped (step S81).

  Then, after starting the cooling operation in step S77, it is determined whether the cooling operation is in the thermo-off state based on the room temperature and the set temperature detected by the room temperature sensor 21 (step S82). The air conditioner enters a thermo-off state when the cooling operation is at a set temperature of 28 ° C. and the room temperature becomes 27 ° C. or lower. Therefore, in step S82, it is determined whether the cooling operation is a thermo-off state based on whether the room temperature is 27 ° C. or lower. And when it is judged that it is not a thermo-off state (step S82: NO), since indoor temperature is higher than 27 degreeC, it transfers to step S77 and continues air_conditionaing | cooling operation.

  On the other hand, when it is determined that the cooling operation is in the thermo-off state (step S82: YES), in the thermo-off state, it is determined whether the room temperature detected by the room temperature sensor 21 has changed to a temperature higher than the set temperature ( Step S83). When it is determined that the room temperature has changed to a temperature higher than the set temperature (step S83: YES), the process proceeds to step S77, and the cooling operation is started. When it is determined that the room temperature has not changed to a temperature higher than the set temperature (step S83: NO), the thermo-off state is continued.

  When the thermo-off state is continued, it is determined whether a predetermined time has elapsed (step S84). When it is determined that the predetermined time has elapsed in the thermo-off state (step S84: YES), the cooling operation is stopped (step S85). In the air conditioner, the cooling operation is stopped after a predetermined time has passed in the thermo-off state, so that when the cooling operation is stopped, the cooling operation is started immediately even if the indoor temperature and the indoor humidity rise. Can be prevented.

  On the other hand, when it is determined that the predetermined time has not elapsed in the thermo-off state (step S84: NO), the process proceeds to step S83, and the room temperature detected by the room temperature sensor 21 changes to a temperature higher than the set temperature. Determine if you did.

<Characteristics of the air conditioner of this embodiment>
In the air conditioner 1 of the present embodiment, similarly to the air conditioner 1 of the first embodiment, when the room is in a state where the room temperature and the room humidity need to be lowered, the room temperature and the room humidity are lowered. The cooling operation is automatically started. Therefore, since it can suppress continuing for a long time in the state where indoor temperature and indoor humidity are high, it can prevent that a user becomes heat stroke etc.

  Moreover, in the air conditioner 1 of this embodiment, when the room temperature and the room humidity are in the high humidity zone, the room humidity can be reduced by starting the dehumidifying operation.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the first to fifth embodiments described above, the forced operation is automatically started based on the room temperature and the room humidity in the forced operation mode, but the forced operation is automatically performed based on the room temperature in the forced operation mode. May be started. In this case, the determination diagram shown in FIG. 12 is used as the determination diagram for starting the forced operation. In the determination diagram of FIG. 12, a high temperature zone, a monitoring zone, and a standby zone are set. The high temperature zone is a region where the room temperature is 28 degrees or more, the standby zone is a region where the room temperature is less than 27 degrees, and the monitoring zone is a region where the room temperature is 27 degrees or more and less than 28 degrees. When the room temperature is in the high temperature zone, the cooling operation (forced operation) is started. When the room temperature is in the monitoring zone, the air blowing operation is performed. When the room temperature is in the standby zone, no cooling operation or air blowing operation is performed. The control in the forced operation mode of the air conditioner is performed based on the room temperature and the room humidity in the first to fifth embodiments, but is different in that it is performed based on the room temperature. -The same method as the control shown in Figs. 5 to 7 and Figs.

  In the first to fifth embodiments described above, the forced operation is automatically started based on the room temperature and the room humidity in the forced operation mode, but the forced operation is automatically performed based on the room humidity in the forced operation mode. May be started. The control in the forced operation mode of the air conditioner is different in that the control is performed based on the room temperature and the room humidity in the first to fifth embodiments based on the room humidity. 1 to 5 in the fifth embodiment, and the same method as the control shown in FIGS.

  In the first to fifth embodiments described above, in the forced operation mode, it may be notified that the forced operation is started before the forced operation is started.

  Further, in the first to fifth embodiments described above, the air conditioner has an outside air temperature detecting means for detecting the outside air temperature, and in the forced operation mode, the outside air temperature detected by the outside air temperature detecting means is a predetermined value. The forced operation may not be started when the temperature is lower than the outside air temperature.

  In the first to fifth embodiments described above, in the forced operation mode, the forced operation is started based on the indoor temperature and the indoor humidity detected by the indoor temperature sensor and the indoor humidity sensor attached to the indoor unit. The forced operation may be started based on the room temperature and the room humidity detected by the room temperature sensor and the room humidity sensor attached to the controller.

  In the above-described first to fifth embodiments, in the forced operation mode, the air blowing operation when the room temperature and the room humidity are in the monitoring zone, the dehumidifying operation when the room temperature and the room humidity are in the high humidity zone, and the user In the automatic operation when the automatic operation is selected by the controller and the operation start operation is performed, the air volume is lower than the air volume of the cooling operation, and the upper and lower flaps are arranged near the upper end of the movable range and the blowing direction is upward However, the air volume and blowing direction can be changed.

  In the first to fifth embodiments described above, in the forced operation mode, the user can select automatic (automatic operation) with the controller 30 and perform only the operation start operation of automatic operation. You may enable it to perform operation start operation, such as a ventilation operation | movement and dehumidification (dehumidification operation).

  By using the present invention, when the room temperature and the room humidity are high, the forced operation for reducing at least one of the room temperature and the room humidity can be automatically started when the operation is stopped.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Indoor unit 3 Outdoor unit 16 Indoor fan 17 Upper and lower flap 21 Indoor temperature sensor 22 Indoor humidity sensor

Claims (18)

Temperature detecting means for detecting the room temperature;
And humidity detecting means for detecting indoor humidity,
When the operation is stopped, a forced operation is automatically started to reduce at least one of the room temperature and the room humidity based on the room temperature detected by the temperature detection means and / or the room humidity detected by the humidity detection means. An air conditioner having a forced operation mode. It is further equipped with an indoor fan arranged inside the indoor unit,
The air conditioner according to claim 1, wherein the indoor temperature and / or indoor humidity is a temperature and / or humidity in a state where the indoor fan is driven.   The air conditioner according to claim 2, wherein the indoor fan is driven when the indoor temperature and / or the indoor humidity are within a predetermined first range.   The air conditioner according to claim 3, wherein the indoor fan is continuously driven when the indoor temperature and / or the indoor humidity is in the first range after the indoor fan is driven.   The air conditioner according to claim 2, wherein the indoor fan is periodically driven for a predetermined blowing time in the forced operation mode.   The forced operation is automatically started when a state in which the indoor temperature and / or the indoor humidity are in the first range continues for a predetermined time after the indoor fan is driven. The air conditioner of any one of -5.   6. The forced operation is automatically started when at least one of the indoor temperature and the indoor humidity after the indoor fan is driven tends to increase. Item 1. An air conditioner according to item 1.   The air conditioner according to any one of claims 3 to 6, wherein the forced operation is automatically started when the room temperature and / or the room humidity are in a predetermined second range.   The air conditioner according to any one of claims 2 to 8, wherein when the indoor fan is driven, the indoor fan is driven at a low speed. It has an upper and lower flap that changes the blowing direction in the vertical direction at the outlet of the indoor unit,
The air conditioner according to any one of claims 2 to 9, wherein when the indoor fan is driven, a blowing direction is changed to an upward direction.   11. The air conditioner according to claim 1, wherein in the forced operation mode, it is notified that the forced operation is started before the forced operation is automatically started. It has an outside air temperature detecting means for detecting the outside air temperature,
The air conditioner according to any one of claims 1 to 11, wherein forced operation is not started when the outside air temperature detected by the outside air temperature detecting means is equal to or lower than a predetermined outside air temperature. With a controller that selects the cooling operation, heating operation or automatic operation and performs the operation start operation,
13. The air conditioner according to claim 1, wherein in the forced operation mode, the controller cannot select a heating operation and perform an operation start operation.   The air conditioner according to claim 13, wherein in the forced operation mode, the operation start operation can be performed by selecting only the automatic operation in the controller.   The air conditioner according to any one of claims 1 to 14, wherein the indoor temperature is a temperature detected by a temperature detection sensor attached to the indoor unit.   The air conditioner according to any one of claims 1 to 14, wherein the room temperature is a temperature detected by a temperature detection sensor attached to the controller.   The air conditioner according to any one of claims 1 to 16, wherein the indoor humidity is a humidity detected by a humidity detection sensor attached to the indoor unit.   The air conditioner according to any one of claims 1 to 16, wherein the indoor humidity is a humidity detected by a humidity detection sensor attached to the controller.

Images