Air conditioning system and control method for air conditioning system

Abstract

To provide an air conditioner capable of removing odor components contained in room air.SOLUTION: An air conditioner according to an embodiment includes an outdoor unit having a ventilation device for ventilating room air, an indoor unit having an electrostatic atomization device disposed in a casing, and a control section for controlling the outdoor unit and the indoor unit. The control section has an odor component exhaust mode in which the ventilation device performs exhaust operation during generation of electrostatic mist by the electrostatic atomization device.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present disclosure relates to an air conditioner and a control method for an air conditioner.

Background Art

[0002] Conventionally, a technique for removing odor components contained in condensed water adhering to a heat exchanger of an indoor unit has been proposed (for example, see Patent Document 1). In Patent Document 1, a heating operation for improving the drying effect of moisture adhering to the heat exchanger of the indoor unit and a blowing operation for improving the removal effect of odor components staying inside the indoor unit are sequentially performed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when the technique disclosed in Patent Document 1 is used, there is a problem that the removed odor components may finally return to the room. The present disclosure discloses an air conditioner that removes odor components from indoor air and a control method for the air conditioner.

Means for Solving the Problems

[0005] The air conditioner according to the present disclosure is an air conditioner including an outdoor unit provided with a ventilation device for ventilating indoor air, an indoor unit provided with an electrostatic atomization device inside a housing, and a control unit for controlling the outdoor unit and the indoor unit, wherein the control unit controls in an odor component mode in which the ventilation device performs an exhaust operation while the electrostatic atomization device generates electrostatic mist. Removal Mode Furthermore, the control unit controls the exhaust airflow rate of the ventilation device according to the amount of condensation water that forms on the surface of the indoor heat exchanger of the indoor unit during cooling operation. It is characterized by doing.

[0006] Furthermore, the control method for an air conditioning system in this disclosure includes an outdoor unit equipped with a ventilation device for ventilating indoor air, and an indoor unit equipped with an electrostatic atomizer inside the housing. The control unit controls it. A control method for an air conditioning system, The control unit, While the electrostatic atomizer is generating electrostatic mist, the ventilation system performs exhaust operation. The control unit executes the odor component removal mode and controls the exhaust airflow of the ventilation device according to the amount of condensation water that forms on the surface of the indoor heat exchanger of the indoor unit during cooling operation. A control method for an air conditioning system, characterized by the following features. [Effects of the Invention]

[0007] The air conditioning system described in this disclosure can remove odor components by decomposing and removing them using electrostatic mist, as well as by exhausting indoor air. Therefore, it can reduce indoor odors. [Brief explanation of the drawing]

[0008] [Figure 1] Schematic diagram of an air conditioning system according to one embodiment of the present disclosure. [Figure 2] Side cross-section of the indoor unit [Figure 3] Block diagram showing the control configuration of an air conditioning system. [Figure 4] Flowchart for controlling an air conditioning system, including an odor removal mode with exhaust operation. [Figure 5] Schematic diagram of exhaust operation in odor component removal mode [Figure 6] Schematic diagram of electrostatic fog circulation operation [Modes for carrying out the invention]

[0009] (Knowledge and other information that formed the basis of this disclosure) At the time the inventors conceived of this disclosure, there was a technology to install an electrostatic atomizer in an air conditioning system for removing indoor odors and neutralizing allergens such as pollen.

[0010] The radicals generated by the electrostatic atomization device are suitable for the decomposition and inactivation of chemical substances. In addition, the inventors have found that suspended particles are collected in the condensed water of the air conditioner, and have invented an air conditioner that uses temperature control of a heat exchanger or the like to collect and remove odor components and indoor suspended particles. However, the inventors have discovered that there is a problem in that it is difficult to collect and remove odor components and the like when sufficient condensed water is not generated, and in order to solve this problem, the subject matter of the present disclosure has been constituted. The present disclosure provides an air conditioner capable of removing odor components of air in a room.

[0011] Hereinafter, embodiments will be described in detail with reference to the drawings. However, a more detailed description than necessary may be omitted. For example, a detailed description of well-known matters or a redundant description of substantially the same configuration may be omitted. This is to avoid making the following description overly redundant and to facilitate the understanding of those skilled in the art. Note that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0012] (Embodiment) Hereinafter, embodiments will be described using FIGS. 1 to 3.

[0013] [1-1. Configuration] [1-1-1. Configuration of Air Conditioner] FIG. 1 is a schematic diagram of an air conditioner according to Embodiment 1.

[0014] As shown in FIG. 1, the air conditioner 1 according to the present embodiment includes an indoor unit 5 disposed in a room Rin to be air-conditioned and an outdoor unit 10 disposed outdoors Rout.

[0015] The indoor unit 5 is provided with an indoor heat exchanger 15 that exchanges heat with the indoor air A1, and an indoor blower 60 that draws the indoor air A1 into the indoor unit 5 and blows out the indoor air A1 that has exchanged heat with the indoor heat exchanger 15 into the room Rin. The indoor heat exchanger 15 is used in a cooling operation for cooling the indoor air by a refrigeration cycle using a refrigerant (not shown) flowing through the indoor heat exchanger 15, a dehumidifying operation for removing moisture from the indoor air, and the like.

[0016] The outdoor unit 10 is provided with an outdoor heat exchanger 30 that exchanges heat with the outdoor air 73, and an outdoor blower 40 that draws the outdoor air 73 into the outdoor unit 10 and blows out the outdoor air 77 that has exchanged heat with the outdoor heat exchanger 30 into the outdoor Rout. Further, the outdoor unit 10 is provided with a compressor 35, an expansion mechanism 50, and a four-way valve 45 that execute a refrigeration cycle with the indoor heat exchanger 15 and the outdoor heat exchanger 30.

[0017] The outdoor unit 10 and the indoor unit 5 are connected by a refrigerant pipe 56, forming a predetermined refrigeration cycle circuit. The indoor heat exchanger 15, the outdoor heat exchanger 30, the compressor 35, the expansion mechanism 50, and the four-way valve 45 are respectively connected by refrigerant pipes. In the case of a cooling operation and a dehumidifying operation (weak cooling operation), the air conditioner 1 constitutes a refrigeration cycle in which the refrigerant flows from the compressor 35 through the four-way valve 45, the outdoor heat exchanger 30, the expansion mechanism 50, and the indoor heat exchanger 15 in sequence and returns to the compressor 35. In the case of a heating operation, the air conditioner 1 constitutes a refrigeration cycle in which the refrigerant flows from the compressor 35 through the four-way valve 45, the indoor heat exchanger 15, the expansion mechanism 50, and the outdoor heat exchanger 30 in sequence and returns to the compressor 35.

[0018] Next, the configuration of the indoor unit will be described. FIG. 2 is a side sectional view of the indoor unit 5. As shown in FIG. 2, the indoor unit 5 includes a housing 97 attached to an indoor wall surface.

[0019] An air intake port 95 for drawing in indoor air is provided on the top surface of the housing 97. An indoor temperature and humidity detection sensor 105 for measuring the temperature and humidity of the indoor air is provided near the air intake port 95. It is desirable that the indoor temperature and humidity detection sensor 105 can also measure the dew point. An air outlet 91 for blowing air towards the indoor Rin is provided on the bottom surface of the housing 97. Both the air intake port 95 and the air outlet 91 are formed over the entire width of the housing 97. An indoor heat exchanger 15 is housed inside the housing 97. The indoor heat exchanger 15 is formed in a roughly inverted V shape when viewed from the side, and is positioned to partition the space between the air intake 95 and the air outlet 91 inside the housing 97. As a result, indoor air A1 drawn in from the air intake 95 is configured to always pass through the indoor heat exchanger 15 before reaching the air outlet 91. A refrigerant temperature detection sensor 103 is provided to measure the temperature of the refrigerant flowing inside the indoor heat exchanger 15.

[0020] An indoor blower 60 is positioned inside the indoor heat exchanger 15. The indoor blower 60 is rotationally driven by a blower drive motor (not shown) and is configured to draw in indoor air from the intake port 95, pass the air through the indoor heat exchanger 15 to exchange heat, and then blow the air out into the indoor Rin from the outlet port 91.

[0021] Near the air outlet 91, left and right air deflectors 87 are provided so as to be able to swing from side to side to adjust the lateral direction of the blown air. The direction of the left and right air deflectors 87 can be adjusted manually or by an air deflector drive motor (not shown). Below the left and right air deflectors 87, an upper and lower air deflector 89 is provided that can swing freely to adjust the vertical direction of the blown air. The upper and lower air deflectors 89 can be automatically adjusted vertically by an air deflector drive motor (not shown).

[0022] The outdoor unit is equipped with a ventilation device 25. Inside the ventilation device 25 is a ventilation fan (not shown). One end of a ventilation conduit 20 is connected to the ventilation device 25. The ventilation conduit 20 is led into the housing 97 of the indoor unit 5. As shown in Figure 2, air guide members 81 are positioned on both sides of the indoor heat exchanger 15 of the indoor unit 5. The air guide members 81 are formed to curve diagonally upward from the rear of the housing 97. The rear end of the air guide member 81 is curved downward and connected to the ventilation conduit 20. The front end of the air guide member 81 extends to the front side of the indoor heat exchanger 15, and a nozzle 81a is attached to the front end of the air guide member 81, facing downwards on the front side of the indoor heat exchanger 15.

[0023] In this embodiment, the system is configured to perform either an exhaust operation, in which indoor air A1 is sequentially exhausted to the outdoor Rout via the nozzle 81a, air guide member 81, and ventilation conduit 20, or an air supply operation, in which outdoor air is sequentially supplied to the room via the ventilation conduit 20, air guide member 81, and nozzle 81a, by driving the ventilation fan.

[0024] Furthermore, an electrostatic atomizer 85 is positioned inside the housing 97, near the outlet 91. The electrostatic atomizer 85 includes, for example, a discharge unit that discharges into the supplied moisture to generate a mist containing charged water particles, and a power supply circuit that generates a high voltage to be applied to the discharge unit. The discharge unit and power supply circuit are not shown in the diagram. The electrostatic atomizer 85 suppresses viruses, mold, allergy-causing substances, bacteria, etc. in the air and deodorizes by generating a mist containing charged water particles. The charged water particles contain active ingredients such as electrostatic mist that exhibit antibacterial and deodorizing effects.

[0025] The indoor unit 5 is equipped with drainage channels called drain pans 144 and 146 that receive condensation water that is cooled and condensed near the indoor heat exchanger 15.

[0026] An indoor temperature and humidity detection sensor 105 is provided near the air intake port 95 to measure the temperature and humidity of the indoor air. It is desirable that the indoor temperature and humidity detection sensor 105 can also measure the dew point. A refrigerant temperature detection sensor 103 is provided to measure the temperature of the refrigerant flowing inside the indoor heat exchanger 15.

[0027] [1-1-2. Control Configuration] Next, the control configuration of Embodiment 1 will be described. Figure 3 is a block diagram showing the configuration of this embodiment. The indoor unit 5 is equipped with a control unit 7. The control unit 7 controls each component of the air conditioning system 1. The control unit 7 includes a processor, memory, and a timer. The control of the control unit 7 is performed by the processor processing a program stored in memory.

[0028] The control unit 7 is equipped with a communication unit 101, which is capable of communicating with the remote control 70 operated by the user, the indoor unit 5, and the outdoor unit 10. In other words, the control unit 7 controls the operation of the remote control 70 by the user, driving the compressor 35, outdoor fan 40, four-way valve 45, expansion mechanism 50, outdoor heat exchanger 30, ventilation device 25 of the outdoor unit 10, and the indoor heat exchanger 15, indoor fan 60, electrostatic atomizer 85, etc. of the indoor unit 5. The communication unit 101 also sends and receives signals to the indoor unit 5 and the outdoor unit 10 using wired or wireless communication means, enabling the control unit 7 to control the indoor unit 5 and the outdoor unit 10.

[0029] The control unit 7 is connected to a refrigerant temperature detection sensor 103 that measures the temperature of the refrigerant flowing inside the indoor heat exchanger 15, and an indoor temperature and humidity detection sensor 105 that measures the temperature, humidity, and dew point of the indoor air, and acquires various measured values.

[0030] Furthermore, the control unit 7 performs control using normal operating modes such as cooling operation mode, cooling dehumidification operation mode, and heating operation mode. Of course, it may also have modes such as dehumidification operation mode, fan operation mode, and clothes drying operation mode.

[0031] In this embodiment, the control unit 7 performs control in odor component removal mode. The odor removal mode is activated when the user operates the odor removal mode switch on the remote control 70. In this embodiment, when the odor removal mode switch is operated, the control unit 7 starts cooling operation and lowers the surface temperature of the indoor heat exchanger 15 to a temperature below the dew point. Whether or not the surface temperature of the indoor heat exchanger 15 has fallen below the dew point is determined, for example, based on the refrigerant temperature supplied to the indoor heat exchanger 15 by the refrigerant temperature sensor 103 and the humidity of the indoor air by the indoor temperature and humidity detection sensor 105. The moisture in the room cooled on the surface of the indoor heat exchanger 15 condenses when the temperature falls below the dew point, generating condensation water. Odor components floating in the room are collected and removed in the condensation water.

[0032] When operating in odor component removal mode, the control unit 7 controls the rotation speed of the indoor fan 15 to a predetermined rotation speed or lower, thereby maintaining a state where condensation water does not dry out.

[0033] The specified rotational speed mentioned above is, for example, 1000 rpm, and preferably, for example, 400 rpm. [1-2. Control Method for Air Conditioning Systems] Next, the control method of the air conditioner 1 using the odor component removal mode described above will be explained with reference to a flowchart.

[0034] Figure 4 is a flowchart showing the control operation of the air conditioning system 1 according to this embodiment, including the odor component removal mode and exhaust mode, which will be described later.

[0035] The control unit 7 determines whether the odor component removal mode switch has been operated using the remote control 70 or the like (step SA1). If it is determined that the odor component removal mode switch has been operated (step SA1: YES), the control unit 7 performs control in odor component removal mode. That is, the control unit 7 operates the electrostatic atomizer 85 to generate electrostatic mist A3 and drives the indoor blower 15 at a predetermined rotation speed or less (step SA2). The control unit 7 starts the cooling operation and operates it so that the refrigerant flows sequentially from the compressor 35 through the four-way valve 45, the outdoor heat exchanger 30, the expansion mechanism 50, and the indoor heat exchanger 15, and returns to the compressor 35, thereby cooling the surface of the indoor heat exchanger 15 (step SA3). The control unit 7 controls the ventilation device 25 to operate the ventilation fan for indoor air A1 at high speed and start exhaust operation (step SA4).

[0036] As a result, moisture in the indoor air A1 condenses on the surface of the indoor heat exchanger 15. Odor components contained in the indoor air are adsorbed onto this condensed water. At this time, the ventilation device 25 is driven to perform exhaust operation, sequentially exhausting air to the outdoor Rout via the nozzle 81a, air guide member 81, and ventilation conduit 20, so that odor components that were not adsorbed by condensation water can be discharged to the outside.

[0037] Next, the control unit 7 determines whether or not the odor component removal mode has been performed for a predetermined period of time (step SA5). If the control unit determines that the odor component removal mode has been performed for a predetermined period of time (Step SA5: YES), the control unit 7 performs control using the electrostatic mist circulation mode. That is, the control unit 7 stops the ventilation fan and stops the exhaust operation (Step SA6). The control unit 7 controls the upper and lower air deflectors 89 to face upward, causing the air blown out from the outlet to rise along the front of the indoor unit and be drawn back into the indoor unit through the air intake 95, thus creating a so-called short-circuit air circulation.

[0038] As a result, the indoor air A1 containing the electrostatic mist N (see Figure 5) generated by the electrostatic atomizer 85 is circulated (step SA7). By controlling it in this way, odor components and other allergens can be more easily decomposed by the electrostatic mist. In addition, since the exhaust operation of the ventilation device 25 is stopped, the electrostatic mist generated by the electrostatic atomizer 85 is prevented from being exhausted outside, and the reduction of electrostatic mist can be suppressed.

[0039] The control unit 7 determines whether or not control using the electrostatic mist circulation mode has been performed for a predetermined period of time (step SA8). If it is determined that control by electrostatic mist circulation mode has been performed for a predetermined time (Step SA8: YES), control by internal cleaning mode is performed. That is, the control unit 7 stops the electrostatic atomizer 85 and performs internal cleaning operation (Step SA9). Specifically, the indoor blower 60 is operated continuously to dry the moisture that has condensed on the surface of the indoor heat exchanger 15.

[0040] If the odor removal mode switch is not operated (Step SA1: NO), the unit will remain in standby mode. Also, if control using the odor removal mode has not been performed for a predetermined time (Step SA5: NO), the unit will continue operating in odor removal mode. If control using the electrostatic mist circulation mode has not been performed for a predetermined time (Step SA8: NO), the unit will continue operating in electrostatic mist circulation mode.

[0041] Figure 5 is a schematic diagram showing the operation of the air conditioning system 1 according to this embodiment in the odor component removal mode. In the odor component removal mode, indoor air A1 and electrostatic mist A3 are blown out from the outlet 91, and indoor air A1 is exhausted from the air guide member 81, thereby reducing the amount of odor components contained in the indoor air.

[0042] Figure 6 is a schematic diagram showing the operation of the air conditioning system 1 according to this embodiment in electrostatic mist circulation mode. In order to prevent a decrease in the electrostatic mist that decomposes odor components contained in the indoor air, the control unit 7 controls the ventilation device 25 to stop exhaust operation or reduce the exhaust airflow rate. By performing such control, the indoor air A1 + A3 containing electrostatic mist circulates in the room.

[0043] [1-3. Effects, etc.] As described above, the air conditioning system 1 in this embodiment comprises an outdoor unit 10 equipped with a ventilation device 25 for ventilating indoor air A1, an indoor unit 5 equipped with an electrostatic atomizer 85 inside a housing 97, and a control unit 7 for controlling the outdoor unit 10 and the indoor unit 5. The control unit 7 is characterized in that it controls the ventilation device 25 in an odor component exhaust mode, in which it performs exhaust operation while the electrostatic atomizer 85 is generating electrostatic mist A3.

[0044] This system decomposes and removes odor components using electrostatic mist, while also removing odor components by exhausting indoor air. Therefore, it can efficiently reduce odors in the room.

[0045] Furthermore, in the air conditioning system 1 according to this embodiment, the control unit 7 is characterized in that it controls the ventilation system 25 in an exhaust stop mode, stopping its exhaust operation while the electrostatic atomizer 85 is circulating the electrostatic mist in the room.

[0046] This enables quiet operation by reducing the exhaust flow rate in order to reduce exhaust noise during electrostatic mist circulation operation of the electrostatic atomizer 85. In addition, since the electrostatic mist A3 is not exhausted, it may have the effect of promoting the decomposition of odor components contained in the indoor air A1.

[0047] (Other embodiments) In another embodiment of the air conditioning system 1, the control unit 7 may control the exhaust airflow rate of the ventilation device 25 according to the amount of condensation water that forms on the surface of the indoor heat exchanger 15 of the indoor unit 5 during cooling operation.

[0048] This makes operation in odor removal mode less susceptible to the influence of the indoor environment.

[0049] In another embodiment, the system may include an indoor temperature and humidity detection sensor 105 that measures the temperature and humidity of the indoor air A1 in which the indoor unit 5 is installed, and a refrigerant temperature detection sensor 103 that measures the surface temperature of the indoor heat exchanger 15. The control unit 7 may then control the system to increase the exhaust airflow rate of the ventilation device 25 if the temperature of the indoor heat exchanger 15 does not fall below the dew point temperature of the indoor air A1 and condensation does not occur.

[0050] If condensation is not expected to form, increasing the exhaust airflow can be considered to remove odor components through ventilation. For example, the exhaust airflow could be set to maximum when the relative humidity is 40%, to minimum when the relative humidity is between 40% and 70%, and to zero when the relative humidity is greater than 70%.

[0051] This allows for the effective removal of odor components.

[0052] In another embodiment, the control unit 7 may control the exhaust airflow rate of the ventilation device 25 based on the humidity of the indoor air A1 measured by the indoor temperature and humidity detection sensor 105.

[0053] This allows for operation that, for example, increases the exhaust flow rate when indoor humidity is low because condensation cannot be expected, and decreases the exhaust flow rate when humidity is high because sufficient condensation can be expected to reduce exhaust noise.

[0054] Furthermore, in the air conditioning system 1 according to this embodiment, the control unit 7 is characterized in that when the temperature of the indoor heat exchanger 15, measured by the refrigerant temperature detection sensor 103, falls below the freezing point of water, it increases the exhaust airflow rate of the ventilation system 25.

[0055] If the temperature of the indoor heat exchanger is detected to be below the freezing point of water, adsorption of odor components into condensation water cannot be expected. Therefore, it is advisable to increase the exhaust airflow to remove odor components through ventilation.

[0056] Since the embodiments described above are for illustrative purposes only, various modifications, substitutions, additions, omissions, etc., can be made within the claims or their equivalents.

[0057] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0058] (Technology 1) An air conditioning system comprising an outdoor unit equipped with a ventilation device for ventilating indoor air, an indoor unit equipped with an electrostatic atomizer inside its casing, and a control unit for controlling the outdoor unit and the indoor unit, wherein the control unit controls the ventilation device in an odor component exhaust mode, in which the electrostatic atomizer generates electrostatic mist. This configuration allows for more effective removal of odor components.

[0059] (Technology 2) The air conditioning system according to Technology 1, characterized in that the control unit controls the system in an exhaust stop mode, which stops the exhaust operation of the ventilation system, while the electrostatic atomizer is circulating the electrostatic mist in the room. This configuration allows for quiet operation of the electrostatic atomizer by reducing the exhaust flow rate to minimize exhaust noise during electrostatic mist circulation. Furthermore, since the electrostatic mist is not exhausted, it can promote the decomposition of odor components in the indoor air.

[0060] (Technology 3) An air conditioning system according to Technology 1 or Technology 2, characterized in that the control unit controls the exhaust airflow of the ventilation device in accordance with the amount of condensation water that condenses on the surface of the indoor heat exchanger of the indoor unit during cooling operation. This configuration makes operation in odor removal mode less susceptible to indoor environmental influences.

[0061] (Technology 4) An air conditioning system according to any one of Technology 1 to Technology 3, comprising an indoor temperature and humidity detection sensor that measures the temperature and humidity of the indoor air in which the indoor unit is installed, and a refrigerant temperature detection sensor that measures the surface temperature of the indoor heat exchanger, wherein the control unit controls the exhaust airflow rate of the ventilation system to increase when the temperature of the indoor heat exchanger does not fall below the dew point temperature of the indoor air and condensation does not occur. If condensation is not expected to form, increasing the exhaust airflow can be considered to remove odor components through ventilation. For example, the exhaust airflow could be set to maximum when the relative humidity is 40%, to minimum when the relative humidity is between 40% and 70%, and to zero when the relative humidity is greater than 70%.

[0062] This allows for more effective removal of odor components.

[0063] (Technical 5) The air conditioning system according to Technical 4, characterized in that the control unit controls the exhaust airflow rate of the ventilation system based on the humidity of the indoor air measured by the indoor temperature and humidity detection sensor. With this configuration, for example, when the indoor humidity is low, condensation cannot be expected, so the exhaust flow rate can be increased, and when the humidity is high, sufficient condensation can be expected, so the exhaust flow rate can be reduced to reduce exhaust noise.

[0064] (Technology 6) An air conditioning system according to any one of Technology 1 to Technology 5, characterized in that the control unit increases the exhaust airflow rate of the ventilation system when the surface temperature of the indoor heat exchanger, measured by a refrigerant temperature detection sensor, falls below the freezing point of water. With this configuration, if the indoor heat exchanger temperature is detected to be below the freezing point of water, adsorption of odor components onto condensed water cannot be expected. Therefore, the exhaust airflow can be increased to remove odor components through ventilation, thereby effectively removing odor components.

[0065] (Technical 7) A control method for an air conditioning system in which an outdoor unit equipped with a ventilation device for ventilating indoor air and an indoor unit equipped with an electrostatic atomizer inside the housing are controlled by a control unit, wherein the control unit executes an odor component exhaust mode in which the ventilation device performs exhaust operation while the electrostatic atomizer is generating electrostatic mist. This configuration allows for more effective removal of odor components. [Industrial applicability]

[0066] This disclosure is applicable to devices for regulating indoor air in general. Specifically, this disclosure is applicable to air conditioning systems, air purifiers, and the like. [Explanation of symbols]

[0067] 1. Air conditioning system 5 Indoor unit 7 Control Unit 10 Outdoor unit 15 Indoor heat exchanger 25 Ventilation system 85 Electrostatic atomizer 97 cabinets 103 Refrigerant temperature detection sensor 105 Indoor temperature and humidity detection sensor

Claims

1. An outdoor unit equipped with a ventilation device for ventilating indoor air, An indoor unit equipped with an electrostatic atomizer inside the enclosure, The outdoor unit and the control unit that controls the indoor unit An air conditioning system equipped with, The control unit controls the ventilation device in an odor component removal mode, where the electrostatic atomizer generates electrostatic mist and the ventilation device performs exhaust operation. An air conditioning system characterized in that the control unit controls the exhaust airflow rate of the ventilation device in accordance with the amount of condensation water that condenses on the surface of the indoor heat exchanger of the indoor unit during cooling operation.

2. The air conditioning system according to claim 1, characterized in that the control unit controls the ventilation system in an exhaust stop mode, which stops the exhaust operation of the ventilation system, while the electrostatic atomizer is circulating the electrostatic mist in the room.

3. An indoor temperature and humidity detection sensor that measures the temperature and humidity of the indoor air in which the indoor unit is installed, A refrigerant temperature detection sensor for measuring the surface temperature of the indoor heat exchanger, Equipped with, The air conditioning system according to claim 1, characterized in that the control unit increases the exhaust airflow rate of the ventilation device when the temperature of the indoor heat exchanger does not fall below the dew point temperature of the indoor air and condensation does not occur.

4. The air conditioning system according to claim 3, characterized in that the control unit controls the exhaust airflow rate of the ventilation device based on the humidity of the indoor air measured by the indoor temperature and humidity detection sensor.

5. The air conditioning system according to claim 3, characterized in that the control unit increases the exhaust airflow rate of the ventilation system when the surface temperature of the indoor heat exchanger, as measured by the refrigerant temperature detection sensor, falls below the freezing point of water.

6. A control method for an air conditioning system in which an outdoor unit equipped with a ventilation device for ventilating indoor air and an indoor unit equipped with an electrostatic atomizer inside the casing are controlled by a control unit, The control unit executes an odor component removal mode in which the ventilation device performs exhaust operation while the electrostatic atomizer is generating electrostatic mist. A control method for an air conditioning system, characterized in that the control unit controls the exhaust airflow rate of the ventilation system according to the amount of condensation water that forms on the surface of the indoor heat exchanger of the indoor unit during cooling operation.

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