WO2008056692A1 - Climatiseur - Google Patents

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Publication number
WO2008056692A1
WO2008056692A1 PCT/JP2007/071615 JP2007071615W WO2008056692A1 WO 2008056692 A1 WO2008056692 A1 WO 2008056692A1 JP 2007071615 W JP2007071615 W JP 2007071615W WO 2008056692 A1 WO2008056692 A1 WO 2008056692A1
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WO
WIPO (PCT)
Prior art keywords
temperature
air
unit
outdoor
room
Prior art date
Application number
PCT/JP2007/071615
Other languages
English (en)
Japanese (ja)
Inventor
Atsushi Matsubara
Original Assignee
Daikin Industries, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Publication of WO2008056692A1 publication Critical patent/WO2008056692A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0008—Control or safety arrangements for air-humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0087—Indoor units, e.g. fan coil units with humidification means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/95—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying specially adapted for specific purposes

Definitions

  • the present invention relates to an air conditioner, and more particularly, to an air conditioner having a mold suppression mode that suppresses generation of mold.
  • Some recent air conditioners have various functions.
  • the functions include an automatic operation mode and a sleep mode that make room temperature and humidity comfortable, and a mold suppression mode that suppresses the generation and growth of mold.
  • a mold suppression mode for example, as shown in Patent Document 1, a so-called reheat dehumidification operation is performed to suddenly change the relative humidity in the room, thereby suppressing mold generation and growth. Things are known.
  • Patent Document 1 JP 2002-61923 A
  • the present invention provides an air conditioner that can suppress the occurrence and growth of mold in the room even when the outdoor temperature is low, such as less than 10 degrees, as in winter. .
  • the air conditioner according to the first aspect of the present invention has a mold suppression mode for suppressing mold generation.
  • the air conditioner includes a heating unit, a temperature detection unit, and a control unit.
  • the heating unit can adjust the temperature of the room by supplying heated air to the room.
  • the temperature detector detects the outdoor temperature.
  • the control unit has an outdoor temperature lower than a predetermined level in the mold suppression mode. In this case, control is performed so that air heated by the heating unit is supplied to the room.
  • this air conditioner When the outdoor temperature is less than 10 degrees, for example, this air conditioner performs heating operation and raises the indoor temperature. Thereby, only the relative humidity of indoor air falls. Therefore, this air conditioner can make the room difficult for mold to grow even when the outdoor temperature is low.
  • An air conditioner according to a second aspect of the present invention is the air conditioner according to the first aspect, wherein the control unit controls the heating unit so that the rate of change of the relative humidity in the room is greater than the rate of change of the absolute humidity. To do. In this way, by controlling the relative humidity to decrease to a specific ratio while maintaining the absolute humidity in the room, the room is maintained at an appropriate humidity at which mold does not easily grow.
  • An air conditioner according to a third aspect of the present invention is the air conditioner according to the first or second aspect of the present invention, further comprising a ventilation unit capable of supplying the outdoor air into the room and ventilating the room. .
  • the air conditioner according to the invention 4 is the air conditioner according to the invention 3, wherein the control unit ventilates the room when the outdoor absolute humidity is lower than the indoor absolute humidity. Further control.
  • An air conditioner according to a fifth aspect of the present invention is the air conditioner according to any of the first to fourth aspects of the present invention, further comprising a dehumidifying unit.
  • the dehumidifying unit dehumidifies indoor air. Then, when the outdoor temperature is equal to or higher than a predetermined level in the mold suppression mode, the control unit dehumidifies the room air and heats the indoor air so that the room air is dehumidified by the dehumidifying unit and heated by the heating unit. Control more parts.
  • This air conditioner performs a so-called reheat dehumidification operation when the outdoor temperature is, for example, 10 ° C or higher.
  • the outdoor temperature is, for example, 10 ° C or higher.
  • the air conditioner pertaining to the first aspect of the present invention even when the outdoor temperature is low, it is possible to make the room difficult for mold to grow. Therefore, it can be controlled with the ability S to suppress the occurrence and growth of mold in the room.
  • the room is kept at an appropriate humidity at which mold does not easily grow.
  • the indoor air is heated relative to the indoor air without being heated more than necessary. Only humidity can be easily reduced.
  • the indoor relative humidity can be reduced more effectively.
  • the air conditioner according to the fifth aspect of the invention switches to heating operation or so-called reheat dehumidification operation according to the outdoor temperature, and therefore can achieve a fungus suppression mode function suitable for the outdoor temperature at that time.
  • FIG. 1 is an external view of an air conditioner according to the present embodiment.
  • FIG. 2 is a diagram showing a configuration of a refrigerant circuit and a humidity control unit 4 according to the present embodiment and an air flow.
  • FIG. 3 is a diagram schematically showing a control unit of the air conditioner according to the present embodiment and connections with peripheral devices of the control unit.
  • FIG. 4 is a diagram for explaining an operation method in a mold suppression mode according to the present embodiment.
  • FIG. 5 is a flowchart showing an overall operation flow of the air conditioner according to the present embodiment.
  • FIG. 6 is a sub-routine for mold suppression mode control of the air conditioner according to the present embodiment.
  • FIG. 1 is an external view of an air conditioner according to an embodiment of the present invention.
  • This air conditioner 1 is divided into an indoor unit 2 attached to an indoor wall and the like, and an outdoor unit 3 installed outside the room, and is used for indoor air conditioning operation, dehumidifying operation and humidifying operation. In addition, it has functions such as a mold suppression mode.
  • the indoor unit 2 is provided with a receiving unit 21, an LED 22, an indoor temperature thermistor 27, an indoor humidity sensor 28, and the like.
  • the receiving unit 21 is provided so as to be able to receive an instruction to start various functions such as a mold suppression mode transmitted from the remote controller.
  • the LED 22 lights up and blinks according to the operation of the air conditioner 1. For example, the LED 22 turns on blue and white alternately while the air conditioner 1 is operating in the mold suppression mode.
  • the indoor temperature thermistor 27 and the indoor humidity sensor 28 detect the indoor temperature and humidity, respectively.
  • the indoor unit 2 has a capacity for storing the indoor heat exchangers 23a and 23b, the indoor motor-operated valve 24, the indoor fan motor 26, etc. Will be described later.
  • the outdoor unit 3 includes an outdoor air conditioning unit 5 and an air supply / humidification unit 4.
  • the outdoor air conditioning unit 5 is provided with an outdoor heat exchanger 54 (described later), an outdoor temperature thermistor 63 for detecting outdoor temperature, an outdoor humidity sensor 64 for detecting outdoor humidity, and the like.
  • the air supply / humidification unit 4 supplies the air sucked from outside as it is or humidified to the room.
  • Each heat exchanger and the refrigerant pipes 6a and 6b connecting these heat exchangers constitute a refrigerant circuit.
  • an air supply pipe 7 is provided between the indoor unit 2 and the outdoor unit 3 to be used when air sent from the air supply / humidification unit 4 is supplied to the indoor unit 2 side.
  • FIG. 2 is a system diagram of a refrigerant circuit used in the air conditioner 1.
  • first and second indoor heat exchangers 23a and 23b Inside the indoor unit 2, first and second indoor heat exchangers 23a and 23b, an indoor motor operated valve 24, a cross flow fan 25, and an indoor fan motor 26 are provided.
  • the first and second indoor heat exchangers 23a and 23b are composed of a heat transfer tube that is bent back and forth at both ends in the longitudinal direction and a plurality of fins through which the heat transfer tube is passed, and is in contact with the air in contact therewith. Perform heat exchange.
  • the first and second indoor heat exchangers 23a and 23b function as an evaporator during the cooling operation and the dehumidifying operation. Therefore, when the indoor air comes into contact with the first and second indoor heat exchangers 23a, 23b functioning as an evaporator, the moisture in the air condenses into water droplets, and the first and second indoor heat exchangers 23a , 23b is dropped on a drain pan (not shown) provided below 23b. Thereby, the temperature and humidity in indoor air fall.
  • the first and second indoor heat exchangers 23a and 23b function as condensers, so that the indoor air contacts the first and second indoor heat exchangers 23a and 23b. The air is warmed.
  • the first indoor heat exchanger 23a functions as a condenser
  • the second indoor heat exchanger 23b functions as an evaporator. This makes contact with the first indoor heat exchanger 23a
  • the moisture in the indoor air thus condensed condenses into water droplets and drops onto the drain pan. Therefore, air with reduced temperature and humidity is sent indoors.
  • the indoor air that has come into contact with the second indoor heat exchanger 23b is warmed and sent to the room. In this way, air with reduced temperature and humidity and warmed air mix in the room, and the relative humidity of the room air decreases.
  • the indoor motor-operated valve 24 exchanges heat with the first heat exchanger 23a and the second room heat. Connect to vessel 23b!
  • the cross flow fan 25 is configured in a cylindrical shape, and has a large number of wings on its peripheral surface, and generates an air flow in a direction crossing the rotation axis.
  • the cross flow fan 25 sucks indoor air into the indoor unit 2 and blows out air after heat exchange has been performed between the first and second indoor heat exchangers 23a and 23b.
  • the indoor fan motor 26 is for driving the cross flow fan 25 to rotate. [Outdoor air conditioning unit]
  • the outdoor air conditioning unit 5 Inside the outdoor air conditioning unit 5, it is connected to a compressor 51, a four-way selector valve 52 connected to the discharge side of the compressor 51, an accumulator 53 connected to the suction side of the compressor 51, and a four-way selector valve 52.
  • the outdoor heat exchanger 54 and the motor-operated valve 55 connected to the outdoor heat exchanger 54 are provided.
  • the motor-operated valve 55 is connected to the refrigerant pipe 6a via a filter 56 and a liquid closing valve 57, and is connected to the first indoor heat exchanger 23a via the refrigerant pipe 6a.
  • the four-way selector valve 52 is connected to the refrigerant pipe 6b via the gas shut-off valve 58, and is connected to the second indoor heat exchanger 23b via the refrigerant pipe 6b.
  • the four-way selector valve 52 switches the refrigerant flow between cooling and heating.
  • a propeller fan 59 is provided in the outdoor air conditioning unit 5.
  • the propeller fan 59 is for discharging the air after heat exchange in the outdoor heat exchanger 54 to the outside, and is rotated by an outdoor fan motor 60.
  • the air supply / humidification unit 4 includes a suction / humidification rotor 41, a heater 43, a radial fan 44, and a suction fan 45.
  • the humidification / humidification rotor 41 is a honeycomb-structured ceramic rotor having a generally circular shape. Thus, the structure allows air to pass easily.
  • the humidifying / humidifying rotor 41 is rotationally driven by a rotor driving motor 42.
  • the adsorbing / humidifying rotor 41 carries an adsorbent such as zeolite, silica gel or alumina. This zeolite adsorbent can adsorb moisture in the air in contact with it and has the property of releasing moisture when heated.
  • the heater 43 heats the air that is taken from outside the room and sent to the suction and humidification rotor 41 during the humidification operation.
  • the radial fan 44 is disposed on the side of the humidifying / humidifying rotor 41 and is driven by the radial fan motor 44a.
  • the radial fan 44 generates a flow of air (A1 in Fig. 2) from the air supply port 40a for introducing air from the outside to the room through the humidifying / humidifying rotor 41, and the air from the outside is supplied to the air supply pipe. Plays the role of sending to indoor unit 2 via 7.
  • the suction fan 45 is driven to rotate by a suction fan motor 46.
  • the suction fan 45 generates air flow so that the air sucked from the suction air suction port 40b is exhausted to the outside through the suction air blowout port 40c (A2 in Fig. 2).
  • the suction air suction port 40b is an opening through which the air taken in from the air supply / humidification unit 4 external force to adsorb moisture to the suction / humidification rotor 41, and the suction air blowout port 40c. It is an opening for discharging the air in which moisture is adsorbed by the humidifier 41 to the outside of the room.
  • the heater 43 force S is turned on, and the air taken in from the air supply / exhaust port 4 Oa is heated by the heater, and the moisture separated from the suction / humidification rotor 41 is removed. It is sent to the air supply pipe 7 in the state of containing. Further, at the time of air supply ventilation without humidification, the heater 43 is turned off, and the air taken in from the intake / exhaust port 40a is sent to the air supply pipe 7 as it is.
  • the control unit 8 is a microcomputer composed of a CPU and a memory, and is provided separately in an electrical component box or the like disposed in the indoor unit 2 and the outdoor unit 3.
  • the control unit 8 is connected to each device of the indoor unit 2 and the outdoor unit 3, and controls each connected device.
  • the reception unit 21 of the indoor unit 2 receives an instruction to start the mold suppression mode. If this happens, control the temperature and humidity in the room based on the outdoor temperature TO so that the generation and growth of mold in the room can be suppressed.
  • control unit 8 functions as a mode control unit 8a, a timer 8b, an operation determination unit 8c, a target temperature setting unit 8d, a temperature control unit 8e, and an air supply / humidification control unit 8f.
  • mode control unit 8a a mode control unit 8a
  • timer 8b a timer 8b
  • operation determination unit 8c a target temperature setting unit 8d
  • target temperature setting unit 8d a target temperature setting unit 8d
  • temperature control unit 8e a temperature control unit 8e
  • air supply / humidification control unit 8f an air supply / humidification control unit 8f.
  • the mode control unit 8a controls the operation mode of the air conditioner 1 when the receiving unit 21 of the indoor unit 2 receives various operation instructions from a remote controller or the like. For example, when the receiving unit 21 receives an instruction to start the mold suppression mode, the mode control unit 8a outputs a mode setting signal indicating this to other functional units in the control unit 8.
  • the timer 8b When the timer 8b acquires the mode setting signal from the mode control unit 8a, the timer 8b starts outputting time information.
  • the time information output from the timer 8b is taken into the temperature control unit 8e and the air supply / humidification control unit 8f.
  • the operation determination unit 8c determines how to operate based on the mode setting signal acquired from the mode control unit 8e.
  • the target temperature setting unit 8d, the temperature adjustment control unit 8e, and the supply air humidification control The judgment result is output to part 8f.
  • the operation determination unit 8c acquires the mode setting signal indicating the mold suppression mode
  • the operation determination unit 8c performs the heating operation or performs the reheat dehumidification operation according to the outdoor temperature TO detected by the outdoor temperature thermistor 63. Determine whether.
  • the operation determination unit 8c determines the heating operation or the reheat dehumidification operation in the mold control mode.
  • the vertical axis represents the outdoor temperature TO, and represents the type of operation determined according to the outdoor temperature TO.
  • Fig. 4 shows that the horizontal axis is time and the type of operation is switched according to the outdoor temperature TO that changes over time.
  • the operation determination unit 8c acquires a mode setting signal indicating the mold suppression mode.
  • a heating operation start instruction is output to the target temperature setting unit 8d and the temperature control unit 8e.
  • the operation determination unit 8c compares the outdoor absolute humidity with the indoor absolute humidity.
  • the operation determination unit 8c outputs an instruction to start the supply / air ventilation operation to the supply / humidification control unit 8f.
  • the outdoor and indoor humidity detected by the outdoor and indoor humidity sensors 64 and 28 are relative humidity. Therefore, the operation determination unit 8c converts the humidity detected by the humidity sensors 64 and 28 into absolute humidity using the temperature detected by the temperature thermistors 63 and 27, and performs comparison using the converted absolute humidity. .
  • the operation determination unit 8c calculates and compares the outdoor and indoor absolute humidity and outputs the instruction for the supply air ventilation operation when the outdoor absolute humidity is lower than the indoor absolute humidity, the heating operation is performed. At the same time, air supply ventilation operation is performed. Therefore, the force S can be used to effectively reduce the relative humidity in the room without heating more than necessary.
  • the operation determination unit 8c acquires the mode setting signal indicating the mold suppression mode, if the outdoor temperature TO is equal to or higher than the first predetermined temperature TEMPL and lower than the second predetermined temperature TEMPH, the reheat dehumidification An operation start instruction is output to the temperature control unit 8e.
  • the operation determination unit 8c stops the operation ( Operation prohibition) command is output to the temperature control unit 8e and the air supply / humidification control unit 8f
  • the first predetermined temperature TEMPL and the second predetermined temperature TEMPH are predetermined temperatures.
  • the first predetermined temperature TEMPL is set to 10 degrees
  • the second predetermined temperature TEMPH is set to 42 degrees.
  • the operation determination unit 8c monitors the outdoor temperature TO detected by the outdoor temperature thermistor 63 during the reheat dehumidification operation. When this temperature becomes lower than the temperature “TEMPL ⁇ dt” obtained by subtracting the outside air temperature deviation dt from the first predetermined temperature TEMPL, the operation determination unit 8c adjusts the target temperature setting unit 8d to adjust the instruction to switch to the heating operation. Output to the temperature control unit 8e and the supply air humidification control unit 8f.
  • the outside temperature deviation dt is a value determined in advance by experiments or the like.
  • the target temperature setting unit 8d sets the indoor target temperature Tt and outputs it to the temperature control unit 8e. Specifically, when the target temperature setting unit 8d acquires a mode setting signal indicating the mold suppression mode from the mode control unit 8a and acquires a heating operation start instruction from the operation determination unit 8c, the target temperature setting unit 8d Set the target temperature T t so that the rate of change of relative humidity is greater than the rate of change of absolute humidity. That is, the target temperature Tt in the mold suppression mode is set to a temperature at which the relative humidity changes to a specific ratio while the absolute humidity in the room is almost maintained.
  • the target temperature setting unit 8d sets the target temperature when the heating operation is instructed in the mold suppression mode will be briefly described.
  • the target temperature setting unit 8d calculates the target temperature Tt by, for example, applying the current indoor temperature Tx detected by the indoor temperature thermistor 27 to the following equation.
  • the above equation uses the water vapor partial pressure at the indoor temperature Tx and relative humidity, V, the saturated water vapor pressure when the target humidity is Ht, and the relative humidity ratio H / Ht, etc. This equation is obtained and stored in a memory (not shown).
  • the coefficients “1.08” and “8.5” in the above equation are values determined based on the set relative humidity ratio H / Ht, etc.
  • “A” in the above formula is a correction value, which is a fixed value. For example, when indoor moisture such as indoor walls, carpets, sofas, etc. that absorbs indoor humidity during indoor heating, the indoor absolute humidity rises. Therefore, the correction value A corrects the target temperature Tt in consideration of such effects.
  • the correction value A is set in advance through experiments, etc.
  • the temperature control unit 8e controls each device in the indoor unit 2 and the outdoor air conditioning unit 5 so that the room has the target temperature Tt set by the target temperature setting unit 8d.
  • the temperature control unit 8e is detected by the indoor temperature sensor 28.
  • Each device in the refrigerant circuit is controlled based on the temperature of the refrigerant.
  • the temperature control unit 8e receives the first control signal in the refrigerant circuit.
  • each device in the refrigerant circuit is controlled so that the second indoor heat exchanger 23a, 23b functions as a condenser and an evaporator, respectively, so that the reheat dehumidification operation is performed.
  • the temperature control unit 8e performs the heating operation or the reheat dehumidifying operation until the time information output from the timer 8b reaches a predetermined time.
  • the predetermined time is a predetermined time, for example, 3 hours.
  • the air supply / humidification control unit 8f controls each device in the air supply / humidification unit 4 according to the instruction of the humidification operation and the air supply / ventilation operation acquired from the mode control unit 8a.
  • the supply air humidification control unit 8f is connected to the supply / humidification unit 4 Controls each device in the air supply / humidification unit 4 so that the air supply / ventilation operation is performed. More specifically, the air supply / humidification control unit 8f turns off the heater 43 in the air supply / humidification unit 4 so that the air taken in from the intake / exhaust port 40a is sent to the air supply pipe 7 as it is.
  • the rotor driving motor 42a, the radial fan motor 44a, and the like are controlled.
  • the supply air humidification control unit 8f performs the supply air ventilation operation until the time information output from the timer 8b reaches a predetermined time.
  • the predetermined time is a predetermined time, for example, 3 hours.
  • FIG. 5 is a flowchart showing an overall operation flow of the air conditioner 1.
  • Step S1 The receiving unit 21 in the indoor unit 2 of the air conditioner 1 receives the power-on instruction of the air conditioner 1 from the remote controller, etc. (S1), and then receives various operation start instructions. And
  • Steps S2 to S3 The operation start instruction received by the receiving unit 21 of the indoor unit 2 is the mold suppression mode. If this is the case (S2), the mode control unit 8a of the control unit 8 outputs a mode setting signal indicating an instruction of the mold suppression mode to each functional unit. Each functional unit in the control unit 8 performs mold suppression mode control (S3). The mold suppression mode control will be described later.
  • Steps S4 to 5 When the operation start instruction S received by the receiving unit 21 of the indoor unit 2 is an operation start instruction other than the mold suppression mode such as heating or cooling (S4), the mode control unit 8a This fact is output to each functional part in part 8. The control unit 8 performs the instructed operation control (S5).
  • Step S6 When the receiving unit 21 of the indoor unit 2 receives an instruction to turn off the air conditioner 1 from a remote controller or the like (S6), the air conditioner 1 ends its operation. Note that the air conditioner 1 repeats the operations after step S2 until the receiving unit 21 of the indoor unit 2 receives the power-off instruction.
  • FIG. 6 is a flowchart for explaining the mold suppression mode control.
  • Step S11 When the timer 8b of the control unit 8 obtains the mode setting signal indicating the mold suppression mode instruction from the mode control unit 8a, the timer 8b starts outputting time information.
  • the operation determination unit 8c compares the outdoor temperature TO detected by the outdoor temperature thermistor 63 with the first predetermined temperature TEMPL.
  • Steps S12 to 14 When the outdoor temperature TO is lower than the first predetermined temperature TEMPL (S12), the operation determination unit 8c outputs a heating operation start instruction to the target temperature setting unit 8d and the temperature control unit 8e. To do.
  • the target temperature setting unit 8d determines the indoor target temperature Tt (S13), and the temperature control unit 8e performs heating operation so that the indoor temperature becomes the target temperature Tt. Control of the device is started (S14).
  • Steps S15 to 16 The operation determination unit 8c converts the outdoor and indoor relative humidity detected by the outdoor and indoor humidity sensors 64 and 28 into absolute humidity, and compares the outdoor absolute humidity and the indoor absolute humidity. Compare As a result of the comparison, if the outdoor absolute humidity is lower than the indoor absolute humidity (S15), the operation determination unit 8c outputs an instruction to start the supply air ventilation operation to the supply air humidification control unit 8f.
  • the air supply / humidification control unit 8f starts control of each device in the air supply / humidification unit 4 so that the air supply / ventilation operation is performed (S16). Note that the outdoor absolute temperature is the same as the indoor absolute temperature. When it is equal or larger, the supply air ventilation operation is not performed, and only the heating operation is performed.
  • Steps S17 to 18 When the outdoor temperature TO is equal to or higher than the first predetermined temperature TEMPL and lower than the second predetermined temperature TEM PH (S17), the operation determination unit 8c sends an instruction to start the reheat dehumidification operation to the temperature control unit 8e. Output.
  • the temperature control unit 8e starts control of each device in the refrigerant circuit so that the reheat dehumidifying operation is performed (S18).
  • Step S19 When the outdoor temperature TO is less than the temperature "TEMPL-dt" after subtracting the outside temperature deviation dt from the first predetermined temperature TEMPL (S19), the operation determination unit 8c An instruction to switch to operation is output to the target temperature setting unit 8d and the temperature control unit 8e. Then, the operations after step S13 are performed. If the outdoor temperature TO is higher than the temperature "TEMPL-dt", the reheat dehumidification operation is continued.
  • Steps S20 to 22 If the outdoor temperature TO when the mold suppression mode is instructed in Step S17 is equal to or higher than the second predetermined temperature TEMPH, a predetermined time has elapsed since the heating operation or the reheat dehumidifying operation was performed. If the outdoor temperature T 0 becomes higher than the second predetermined temperature TEMPH during heating operation (S20), etc. (S21), the operation determination unit 8c gives an instruction to stop operation (operation prohibited). 8e and the supply air humidification control unit 8f are instructed (S22). This stops the operation. If the predetermined time has elapsed since the heating operation or reheat dehumidifying operation was performed! /,!, And the outdoor temperature TO is lower than the second predetermined temperature TEMPH, Each operation is performed continuously.
  • the air conditioner 1 When the outdoor temperature is lower than the first predetermined temperature TEMPL, the air conditioner 1 performs a heating operation to increase the indoor temperature. More specifically, the air conditioner 1 determines the target temperature so that the relative humidity decreases to a specific ratio while maintaining the absolute humidity in the room, and the room temperature becomes the target temperature Tt. Heating operation. This reduces only the relative humidity of the indoor air. Therefore, even when the outdoor temperature is low, the air conditioner 1 can make the room difficult for mold to grow.
  • the air conditioner 1 performs an air supply / ventilation operation for supplying outdoor air into the room when the outdoor absolute humidity is lower than the indoor absolute humidity. This allows air The conditioner 1 can easily and effectively reduce only the relative humidity of the indoor air without heating the indoor air more than necessary.
  • the air conditioner 1 performs a so-called reheat dehumidification operation when the outdoor temperature is equal to or higher than the first predetermined temperature TEMPL when an instruction for the mold suppression mode is acquired. In this way, by performing the operation method according to the outdoor temperature, it is possible to realize a fungus suppression mode function suitable for the outdoor temperature at that time.
  • Condition 1 When operating in the mold suppression mode, the user presses the buttons for setting various modes on the remote controller, and the receiving unit 21 of the indoor unit 2 is in a mode other than the mold suppression mode. When a mode setting signal indicating an instruction is received.
  • Condition 2 When operating in the mold suppression mode, the operation stop button or power off button on the remote controller is pressed by the user, and the receiving unit 21 of the indoor unit 2 receives this.
  • Condition 3 Operation in the mold control mode Sometimes, for example, an abnormality such as a failure occurs in any device in the indoor unit 2 or the outdoor air conditioning unit 5.
  • the operating power in the mold suppression mode, the heating operating power, and the reheat dehumidifying operation are not switched!
  • the air conditioner performs heating operation when the outdoor temperature is the first predetermined temperature TEMPL, and switches to reheat dehumidification operation when the outdoor temperature becomes equal to or higher than the first predetermined temperature TEMPL during the heating operation. May be.
  • the first predetermined temperature TEMPL is 10 degrees and the second predetermined temperature TEMPH is 42 degrees, but the numerical values of these temperatures are not limited to this.
  • First predetermined temperature TEMPL and The second predetermined temperature TEMPH can be set to an appropriate value according to the place where the air conditioner 1 is installed.
  • the predetermined time for driving in the mold suppression mode is 3 hours, but this value is not limited to this. The predetermined time may be arbitrarily set by the user.
  • the target temperature Tt is determined based on Equation 1
  • the correction value A in Equation 1 is a force S described as being fixed, but is not limited thereto.
  • the correction value A may be changed as appropriate based on changes in the situation including the room temperature and humidity during the heating operation and other system conditions of the air conditioner 1.
  • the air conditioner 1 always monitors the indoor temperature, humidity, system status, etc., and if at least one of them changes, for example, apply the degree of change to an arithmetic expression or a table. Change the correction value A to an appropriate value with! /,.
  • the target temperature Tt can be set by any method other than Equation 1 as long as it is set at a temperature that can suppress mold in the room.
  • the operation determination unit 8c in the control unit 8 of the air conditioner 1 assumes that the outdoor relative humidity is 100%, and calculates the outdoor outdoor temperature based on the temperature detected by the outdoor temperature thermistor 63. Then, the operation determination unit 8c compares the obtained outdoor absolute humidity with the indoor absolute humidity, and determines whether or not to perform the supply-air ventilation operation.
  • the air conditioner 1 monitors the change in the outdoor heat exchange temperature, and estimates the outdoor relative humidity based on the outdoor heat exchange temperature at that time. Good. ⁇
  • the force described by taking the case where the air conditioner 1 is a separate type as an example is not limited to this.
  • the air conditioner according to the present invention can be applied to other types such as an embedded type in a ceiling or the like.
  • the present invention is effective as an air conditioner because it has the effect of making it possible to make the room difficult to grow mold even when the outdoor temperature is low.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un climatiseur pouvant supprimer la présence et la croissance de moisissures dans une chambre même en hiver lorsque la température à l'extérieur de la chambre est basse. Le climatiseur (1) comprend un mode d'élimination de moisissure pour supprimer la présence de moisissures. Le climatiseur (1) comporte une unité d'intérieur (2), un appareil de conditionnement d'air extérieur (5) un thermistor de température d'extérieur (63), et une section de commande (8). L'unité d'intérieur (2) et l'appareil de conditionnement d'air extérieur (5) peuvent ajuster la température dans la chambre en alimentant de l'air réchauffé dans la chambre. Le thermistor de température d'extérieur (63) détecte la température à l'extérieur de la chambre. Lorsque la température à l'extérieur de la chambre est inférieure à un niveau prédéterminé en mode de suppression de moisissure, la section de commande (8) effectue une commande de sorte que l'unité d'intérieur (2) et l'appareil de conditionnement d'air extérieur (5) alimentent de l'air réchauffé dans la chambre.
PCT/JP2007/071615 2006-11-10 2007-11-07 Climatiseur WO2008056692A1 (fr)

Applications Claiming Priority (2)

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JP2006-306029 2006-11-10
JP2006306029A JP4597942B2 (ja) 2006-11-10 2006-11-10 空気調和機

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WO2008056692A1 true WO2008056692A1 (fr) 2008-05-15

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2017173596A1 (fr) * 2016-04-06 2017-10-12 吴鹏 Procédé et système de régulation de température climatisation
EP4145053A4 (fr) * 2020-04-30 2023-10-11 Daikin Industries, Ltd. Procédé de commande d'un système de climatisation

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5067349B2 (ja) * 2008-11-18 2012-11-07 ダイキン工業株式会社 空気調和機
JP5935006B2 (ja) * 2012-10-24 2016-06-15 パナソニックＩｐマネジメント株式会社 制御装置およびプログラム
JP7247594B2 (ja) * 2019-01-18 2023-03-29 株式会社富士通ゼネラル 空気調和機
CN113899058A (zh) 2020-06-22 2022-01-07 大金工业株式会社 空气处理系统的控制方法和空气处理系统

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JP2001263757A (ja) * 2000-03-16 2001-09-26 Mitsubishi Heavy Ind Ltd 空気調和装置、及び、空気調和方法
JP2002061923A (ja) * 2000-08-21 2002-02-28 Hitachi Ltd 空気調和機
JP2003083593A (ja) * 2001-09-12 2003-03-19 Sharp Corp カビ抑制方法及び空気調和機

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JP2000111126A (ja) * 1998-10-05 2000-04-18 Toshiba Corp 空気調和装置

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JP2001263757A (ja) * 2000-03-16 2001-09-26 Mitsubishi Heavy Ind Ltd 空気調和装置、及び、空気調和方法
JP2002061923A (ja) * 2000-08-21 2002-02-28 Hitachi Ltd 空気調和機
JP2003083593A (ja) * 2001-09-12 2003-03-19 Sharp Corp カビ抑制方法及び空気調和機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017173596A1 (fr) * 2016-04-06 2017-10-12 吴鹏 Procédé et système de régulation de température climatisation
EP4145053A4 (fr) * 2020-04-30 2023-10-11 Daikin Industries, Ltd. Procédé de commande d'un système de climatisation

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JP2008121973A (ja) 2008-05-29

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